add one proposaltwoaccepts test to the acceptsproposal query
+@prefix msg: <http://purl.org/webofneeds/message#> .
+@prefix conn: <https://localhost:8443/won/resource/connection/> .
+@prefix mod: <http://purl.org/webofneeds/modification#> .
+@prefix need: <https://localhost:8443/won/resource/need/> .
+@prefix woncrypt: <http://purl.org/webofneeds/woncrypt#> .
+@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix cert: <http://www.w3.org/ns/auth/cert#> .
+@prefix agr: <http://purl.org/webofneeds/agreement#> .
+@prefix local: <https://localhost:8443/won/resource/> .
+@prefix geo: <http://www.w3.org/2003/01/geo/wgs84_pos#> .
+@prefix sig: <http://icp.it-risk.iwvi.uni-koblenz.de/ontologies/signature.owl#> .
+@prefix s: <http://schema.org/> .
+@prefix sh: <http://www.w3.org/ns/shacl#> .
+@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix won: <http://purl.org/webofneeds/model#> .
+@prefix ldp: <http://www.w3.org/ns/ldp#> .
+@prefix event: <https://localhost:8443/won/resource/event/> .
+@prefix dc: <http://purl.org/dc/elements/1.1/> .
+@prefix sioc: <http://rdfs.org/sioc/ns#> .
+
+event:ow321nn1va6clfidc4s0
+ agr:accepts event:557600936467257340 .
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