diff --git a/Bachelorarbeit.tex b/Bachelorarbeit.tex
index bf4bb87..6a04967 100644
--- a/Bachelorarbeit.tex
+++ b/Bachelorarbeit.tex
@@ -1100,7 +1100,6 @@ ACTION
 REGISTER STREAM getEngineWear AS
 PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
 PREFIX f: <http://larkc.eu/csparql/sparql/jena/ext#>
-PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
 PREFIX car: <http://example.org/carSim/carSimulationOntology#>
 CONSTRUCT {
  [] rdf:type car:CarEngineWearEvent
@@ -1210,7 +1209,6 @@ Um dies zu realisieren, werden zwei C-SPARQL-Queries geschrieben, die jeweils di
 REGISTER QUERY getCarTakenEvents AS
 PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
 PREFIX f: <http://larkc.eu/csparql/sparql/jena/ext#>
-PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
 PREFIX car: <http://example.org/carSim/carSimulationOntology#>
 SELECT ?driver ?car
 FROM STREAM <http://example.org/carSim/stream/driverStream> [RANGE 2s TUMBLING]