Query error: EndPointInternalError: The endpoint returned the HTTP status code 500. Response: b'\n{ "head": { "link": [], "vars": ["subject", "predicate", "object"] },\n "results": { "distinct": false, "ordered": true, "bindings": [\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "http://www.w3.org/2000/01/rdf-schema#label" }\t, "object": { "type": "literal", "value": "Jean-Yves Le Boudec" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/almaMater" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/%C3%89cole_Normale_Sup%C3%A9rieure_de_Cachan" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/almaMater" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/Universit%C3%A9_de_Rennes" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/awardReceived" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/IEEE_Fellow" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/awardReceived" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/IFIP_Fellow" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/birthYear" }\t, "object": { "type": "literal", "value": "1958" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/employer" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/%C3%89cole_Polytechnique_F%C3%A9d%C3%A9rale_de_Lausanne" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/field" }\t, "object": { "type": "literal", "value": "computer science" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/field" }\t, "object": { "type": "literal", "value": "distributed systems" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/field" }\t, "object": { "type": "literal", "value": "networking" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/field" }\t, "object": { "type": "literal", "value": "performance evaluation" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/instanceOf" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/person" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/memberOf" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/IEEE" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/memberOf" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/IFIP" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/nationality" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/French" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/notableWork" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/Network_Calculus" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/notableWork" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/Performance_Evaluation_of_Computer_and_Communication_Systems" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/occupation" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/computer_scientist" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/occupation" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/engineer" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/occupation" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/professor" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/publishedIn" }\t, "object": { "type": "literal", "value": "research papers on networking and distributed systems" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/bfsLayer" }\t, "object": { "type": "literal", "value": "6" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Jean-Yves_Le_Boudec" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/bfsParent" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/Lyc%C3%A9e_Lakanal" }} ] } }Virtuoso S1TAT Error RC...: Returning incomplete results, query interrupted by result timeout. Activity: 59 rnd 25 seq 0 same seg 7 same pg 21 same par 0 disk 0 spec disk 0B / 0 messa\n\nSPARQL query:\n\n SELECT ?subject ?predicate ?object\n WHERE {\n ?subject ?predicate ?object .\n FILTER (STR(?subject) = "https://gptkb.org/entity/Jean-Yves_Le_Boudec")\n }\n '