diff --git a/lib/src/sparql/mod.rs b/lib/src/sparql/mod.rs
index 742c9f77..fa709621 100644
--- a/lib/src/sparql/mod.rs
+++ b/lib/src/sparql/mod.rs
@@ -18,7 +18,6 @@ use crate::sparql::plan_builder::PlanBuilder;
 use crate::store::ReadableEncodedStore;
 use crate::Error;
 use crate::Result;
-use oxiri::Iri;
 
 pub use crate::sparql::algebra::GraphPattern;
 pub use crate::sparql::model::QuerySolution;
@@ -30,6 +29,7 @@ pub use crate::sparql::model::QueryResultSyntax;
 pub use crate::sparql::model::Variable;
 pub use crate::sparql::parser::Query;
 pub use crate::sparql::parser::SparqlParseError;
+use std::convert::TryInto;
 
 /// A prepared [SPARQL query](https://www.w3.org/TR/sparql11-query/)
 #[deprecated(
@@ -62,9 +62,13 @@ enum SimplePreparedQueryAction<S: ReadableEncodedStore> {
 }
 
 impl<S: ReadableEncodedStore> SimplePreparedQuery<S> {
-    pub(crate) fn new(store: S, query: &str, options: QueryOptions<'_>) -> Result<Self> {
+    pub(crate) fn new(
+        store: S,
+        query: impl TryInto<Query, Error = impl Into<Error>>,
+        options: QueryOptions,
+    ) -> Result<Self> {
         let dataset = DatasetView::new(store, options.default_graph_as_union);
-        Ok(Self(match Query::parse(query, options.base_iri)?.0 {
+        Ok(Self(match query.try_into().map_err(|e| e.into())?.0 {
             QueryVariants::Select {
                 algebra, base_iri, ..
             } => {
@@ -117,19 +121,14 @@ impl<S: ReadableEncodedStore> SimplePreparedQuery<S> {
     pub(crate) fn new_from_pattern(
         store: S,
         pattern: &GraphPattern,
-        options: QueryOptions<'_>,
+        options: QueryOptions,
     ) -> Result<Self> {
         let dataset = DatasetView::new(store, options.default_graph_as_union);
         let (plan, variables) = PlanBuilder::build(dataset.encoder(), pattern)?;
-        let base_iri = if let Some(base_iri) = options.base_iri {
-            Some(Iri::parse(base_iri.to_string())?)
-        } else {
-            None
-        };
         Ok(Self(SimplePreparedQueryAction::Select {
             plan,
             variables,
-            evaluator: SimpleEvaluator::new(dataset, base_iri, options.service_handler),
+            evaluator: SimpleEvaluator::new(dataset, None, options.service_handler),
         }))
     }
 
@@ -190,30 +189,22 @@ impl ServiceHandler for EmptyServiceHandler {
     }
 }
 
-/// Options for SPARQL query parsing and evaluation like the query base IRI
-pub struct QueryOptions<'a> {
-    pub(crate) base_iri: Option<&'a str>,
+/// Options for SPARQL query evaluation
+pub struct QueryOptions {
     pub(crate) default_graph_as_union: bool,
     pub(crate) service_handler: Box<dyn ServiceHandler>,
 }
 
-impl<'a> Default for QueryOptions<'a> {
+impl Default for QueryOptions {
     fn default() -> Self {
         Self {
-            base_iri: None,
             default_graph_as_union: false,
             service_handler: Box::new(EmptyServiceHandler),
         }
     }
 }
 
-impl<'a> QueryOptions<'a> {
-    /// Allows setting the base IRI of the query
-    pub fn with_base_iri(mut self, base_iri: &'a str) -> Self {
-        self.base_iri = Some(base_iri);
-        self
-    }
-
+impl QueryOptions {
     /// Consider the union of all graphs in the store as the default graph
     pub const fn with_default_graph_as_union(mut self) -> Self {
         self.default_graph_as_union = true;
diff --git a/lib/src/sparql/parser.rs b/lib/src/sparql/parser.rs
index dec57ad1..c89f8d42 100644
--- a/lib/src/sparql/parser.rs
+++ b/lib/src/sparql/parser.rs
@@ -9,6 +9,7 @@ use peg::parser;
 use peg::str::LineCol;
 use std::borrow::Cow;
 use std::collections::{HashMap, HashSet};
+use std::convert::TryFrom;
 use std::error::Error;
 use std::str::Chars;
 use std::str::FromStr;
@@ -61,6 +62,22 @@ impl FromStr for Query {
     }
 }
 
+impl<'a> TryFrom<&'a str> for Query {
+    type Error = SparqlParseError;
+
+    fn try_from(query: &str) -> Result<Self, SparqlParseError> {
+        Self::from_str(query)
+    }
+}
+
+impl<'a> TryFrom<&'a String> for Query {
+    type Error = SparqlParseError;
+
+    fn try_from(query: &String) -> Result<Self, SparqlParseError> {
+        Self::from_str(query)
+    }
+}
+
 /// Error returned during SPARQL parsing.
 #[derive(Debug)]
 pub struct SparqlParseError {
diff --git a/lib/src/store/memory.rs b/lib/src/store/memory.rs
index 8eab9117..9713c955 100644
--- a/lib/src/store/memory.rs
+++ b/lib/src/store/memory.rs
@@ -2,13 +2,13 @@
 
 use crate::error::UnwrapInfallible;
 use crate::model::*;
-use crate::sparql::{GraphPattern, QueryOptions, QueryResult, SimplePreparedQuery};
+use crate::sparql::{GraphPattern, Query, QueryOptions, QueryResult, SimplePreparedQuery};
 use crate::store::numeric_encoder::*;
 use crate::store::{load_dataset, load_graph, ReadableEncodedStore, WritableEncodedStore};
 use crate::{DatasetSyntax, Error, GraphSyntax};
 use std::collections::hash_map::DefaultHasher;
 use std::collections::{HashMap, HashSet};
-use std::convert::Infallible;
+use std::convert::{Infallible, TryInto};
 use std::fmt;
 use std::hash::{BuildHasherDefault, Hash, Hasher};
 use std::io::BufRead;
@@ -105,8 +105,8 @@ impl MemoryStore {
     /// ```
     pub fn prepare_query(
         &self,
-        query: &str,
-        options: QueryOptions<'_>,
+        query: impl TryInto<Query, Error = impl Into<Error>>,
+        options: QueryOptions,
     ) -> crate::Result<MemoryPreparedQuery> {
         Ok(MemoryPreparedQuery(SimplePreparedQuery::new(
             self.clone(),
@@ -119,7 +119,7 @@ impl MemoryStore {
     pub fn prepare_query_from_pattern(
         &self,
         graph_pattern: &GraphPattern,
-        options: QueryOptions<'_>,
+        options: QueryOptions,
     ) -> crate::Result<MemoryPreparedQuery> {
         Ok(MemoryPreparedQuery(SimplePreparedQuery::new_from_pattern(
             self.clone(),
diff --git a/lib/src/store/rocksdb.rs b/lib/src/store/rocksdb.rs
index df87ecee..622adcbc 100644
--- a/lib/src/store/rocksdb.rs
+++ b/lib/src/store/rocksdb.rs
@@ -2,12 +2,12 @@
 
 use crate::error::UnwrapInfallible;
 use crate::model::*;
-use crate::sparql::{GraphPattern, QueryOptions, QueryResult, SimplePreparedQuery};
+use crate::sparql::{GraphPattern, Query, QueryOptions, QueryResult, SimplePreparedQuery};
 use crate::store::numeric_encoder::*;
 use crate::store::{load_dataset, load_graph, ReadableEncodedStore, WritableEncodedStore};
 use crate::{DatasetSyntax, GraphSyntax, Result};
 use rocksdb::*;
-use std::convert::Infallible;
+use std::convert::{Infallible, TryInto};
 use std::io::{BufRead, Cursor};
 use std::mem::{take, transmute};
 use std::path::Path;
@@ -92,10 +92,10 @@ impl RocksDbStore {
     /// Prepares a [SPARQL 1.1 query](https://www.w3.org/TR/sparql11-query/) and returns an object that could be used to execute it.
     ///
     /// See `MemoryStore` for a usage example.
-    pub fn prepare_query<'a>(
-        &'a self,
-        query: &str,
-        options: QueryOptions<'_>,
+    pub fn prepare_query(
+        &self,
+        query: impl TryInto<Query, Error = impl Into<crate::Error>>,
+        options: QueryOptions,
     ) -> Result<RocksDbPreparedQuery> {
         Ok(RocksDbPreparedQuery(SimplePreparedQuery::new(
             (*self).clone(),
@@ -105,10 +105,10 @@ impl RocksDbStore {
     }
 
     /// This is similar to `prepare_query`, but useful if a SPARQL query has already been parsed, which is the case when building `ServiceHandler`s for federated queries with `SERVICE` clauses. For examples, look in the tests.
-    pub fn prepare_query_from_pattern<'a>(
-        &'a self,
+    pub fn prepare_query_from_pattern(
+        &self,
         graph_pattern: &GraphPattern,
-        options: QueryOptions<'_>,
+        options: QueryOptions,
     ) -> Result<RocksDbPreparedQuery> {
         Ok(RocksDbPreparedQuery(SimplePreparedQuery::new_from_pattern(
             (*self).clone(),
diff --git a/lib/src/store/sled.rs b/lib/src/store/sled.rs
index d75a501c..2b3aec0f 100644
--- a/lib/src/store/sled.rs
+++ b/lib/src/store/sled.rs
@@ -2,12 +2,12 @@
 
 use crate::error::UnwrapInfallible;
 use crate::model::*;
-use crate::sparql::{GraphPattern, QueryOptions, QueryResult, SimplePreparedQuery};
+use crate::sparql::{GraphPattern, Query, QueryOptions, QueryResult, SimplePreparedQuery};
 use crate::store::numeric_encoder::*;
 use crate::store::{load_dataset, load_graph, ReadableEncodedStore, WritableEncodedStore};
 use crate::{DatasetSyntax, Error, GraphSyntax, Result};
 use sled::{Batch, Config, Iter, Tree};
-use std::convert::Infallible;
+use std::convert::{Infallible, TryInto};
 use std::io::{BufRead, Cursor};
 use std::path::Path;
 use std::{fmt, str};
@@ -87,10 +87,10 @@ impl SledStore {
     /// Prepares a [SPARQL 1.1 query](https://www.w3.org/TR/sparql11-query/) and returns an object that could be used to execute it.
     ///
     /// See `MemoryStore` for a usage example.
-    pub fn prepare_query<'a>(
-        &'a self,
-        query: &str,
-        options: QueryOptions<'_>,
+    pub fn prepare_query(
+        &self,
+        query: impl TryInto<Query, Error = impl Into<Error>>,
+        options: QueryOptions,
     ) -> Result<SledPreparedQuery> {
         Ok(SledPreparedQuery(SimplePreparedQuery::new(
             (*self).clone(),
@@ -100,10 +100,10 @@ impl SledStore {
     }
 
     /// This is similar to `prepare_query`, but useful if a SPARQL query has already been parsed, which is the case when building `ServiceHandler`s for federated queries with `SERVICE` clauses. For examples, look in the tests.
-    pub fn prepare_query_from_pattern<'a>(
-        &'a self,
+    pub fn prepare_query_from_pattern(
+        &self,
         graph_pattern: &GraphPattern,
-        options: QueryOptions<'_>,
+        options: QueryOptions,
     ) -> Result<SledPreparedQuery> {
         Ok(SledPreparedQuery(SimplePreparedQuery::new_from_pattern(
             (*self).clone(),
diff --git a/lib/tests/service_test_cases.rs b/lib/tests/service_test_cases.rs
index 2f4542dd..84d7cdfb 100644
--- a/lib/tests/service_test_cases.rs
+++ b/lib/tests/service_test_cases.rs
@@ -30,7 +30,7 @@ fn simple_service_test() {
     .to_string();
 
     let options = QueryOptions::default().with_service_handler(TestServiceHandler);
-    let collected = do_query(b"".as_ref(), query, options)
+    let collected = do_query(b"".as_ref(), &query, options)
         .unwrap()
         .map(|b| {
             b.unwrap()
@@ -93,7 +93,7 @@ fn two_service_test() {
     .to_string();
 
     let options = QueryOptions::default().with_service_handler(TwoServiceTest);
-    let collected = do_query(b"".as_ref(), query, options)
+    let collected = do_query(b"".as_ref(), &query, options)
         .unwrap()
         .map(|b| {
             b.unwrap()
@@ -139,7 +139,7 @@ fn silent_service_empty_set_test() {
 
     let triples = b"".as_ref();
     let options = QueryOptions::default().with_service_handler(ServiceTest);
-    assert_eq!(do_query(triples, query, options).unwrap().count(), 1);
+    assert_eq!(do_query(triples, &query, options).unwrap().count(), 1);
 }
 
 #[test]
@@ -172,7 +172,7 @@ fn non_silent_service_test() {
 
     let triples = b"".as_ref();
     let options = QueryOptions::default().with_service_handler(ServiceTest);
-    let mut solutions = do_query(triples, query, options).unwrap();
+    let mut solutions = do_query(triples, &query, options).unwrap();
     if let Some(Err(_)) = solutions.next() {
     } else {
         panic!("This should have been an error since the service fails")
@@ -204,12 +204,12 @@ fn make_store(reader: impl BufRead) -> Result<MemoryStore> {
     Ok(store)
 }
 
-fn query_store<'a>(
+fn query_store(
     store: MemoryStore,
-    query: String,
-    options: QueryOptions<'a>,
-) -> Result<QuerySolutionsIterator<'a>> {
-    match store.prepare_query(&query, options)?.exec()? {
+    query: &str,
+    options: QueryOptions,
+) -> Result<QuerySolutionsIterator<'_>> {
+    match store.prepare_query(query, options)?.exec()? {
         QueryResult::Solutions(iterator) => {
             let (variables, iter) = iterator.destruct();
             let collected = iter.collect::<Vec<_>>();
@@ -225,7 +225,7 @@ fn query_store<'a>(
 fn pattern_store<'a>(
     store: MemoryStore,
     pattern: &'a GraphPattern,
-    options: QueryOptions<'a>,
+    options: QueryOptions,
 ) -> Result<QuerySolutionsIterator<'a>> {
     match store
         .prepare_query_from_pattern(&pattern, options)?
@@ -243,11 +243,11 @@ fn pattern_store<'a>(
     }
 }
 
-fn do_query<'a>(
+fn do_query(
     reader: impl BufRead,
-    query: String,
-    options: QueryOptions<'a>,
-) -> Result<QuerySolutionsIterator<'a>> {
+    query: &str,
+    options: QueryOptions,
+) -> Result<QuerySolutionsIterator<'_>> {
     let store = make_store(reader)?;
     query_store(store, query, options)
 }
@@ -255,7 +255,7 @@ fn do_query<'a>(
 fn do_pattern<'a>(
     reader: impl BufRead,
     pattern: &'a GraphPattern,
-    options: QueryOptions<'a>,
+    options: QueryOptions,
 ) -> Result<QuerySolutionsIterator<'a>> {
     let store = make_store(reader)?;
     pattern_store(store, pattern, options)
diff --git a/testsuite/src/sparql_evaluator.rs b/testsuite/src/sparql_evaluator.rs
index 0d05dee9..c7cf81dd 100644
--- a/testsuite/src/sparql_evaluator.rs
+++ b/testsuite/src/sparql_evaluator.rs
@@ -83,9 +83,11 @@ fn evaluate_sparql_test(test: &Test) -> Result<()> {
             .as_deref()
             .ok_or_else(|| Error::msg(format!("No action found for test {}", test)))?;
         let options = QueryOptions::default()
-            .with_base_iri(query_file)
             .with_service_handler(StaticServiceHandler::new(&test.service_data)?);
-        match store.prepare_query(&read_file_to_string(query_file)?, options) {
+        match store.prepare_query(
+            Query::parse(&read_file_to_string(query_file)?, Some(query_file))?,
+            options,
+        ) {
             Err(error) => Err(Error::msg(format!(
                 "Failure to parse query of {} with error: {}",
                 test, error