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/Linley_Sambourne" }\t, "predicate": { "type": "uri", "value": "http://www.w3.org/2000/01/rdf-schema#label" }\t, "object": { "type": "literal", "value": "Linley Sambourne" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Linley_Sambourne" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/birthDate" }\t, "object": { "type": "literal", "value": "1844-01-04" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Linley_Sambourne" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/burialPlace" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/Brompton_Cemetery" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Linley_Sambourne" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/child" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/Maud_Sambourne" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Linley_Sambourne" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/child" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/Roy_Sambourne" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Linley_Sambourne" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/deathDate" }\t, "object": { "type": "literal", "value": "1910-08-03" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Linley_Sambourne" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/education" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/City_of_London_School" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Linley_Sambourne" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/fullName" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/Edward_Linley_Sambourne" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Linley_Sambourne" }\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/Linley_Sambourne" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/knownFor" }\t, "object": { "type": "literal", "value": "Victorian cartoon art" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Linley_Sambourne" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/nationality" }\t, "object": { "type": "literal", "value": "British" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Linley_Sambourne" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/notableWork" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/Punch_magazine" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Linley_Sambourne" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/occupation" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/cartoonist" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Linley_Sambourne" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/occupation" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/illustrator" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Linley_Sambourne" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/residence" }\t, "object": { "type": "uri", "value": "https://gptkb.org/entity/18_Stafford_Terrace%2C_London" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Linley_Sambourne" }\t, "predicate": { "type": "uri", "value": "https://gptkb.org/prop/signature" }\t, "object": { "type": "literal", "value": "Linley Sambourne signature.svg" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Linley_Sambourne" }\t, "predicate": { Virtuoso S1TAT Error RC...: Returning incomplete results, query interrupted by result timeout. Activity: 60 rnd 21 seq 0 same seg 7 same pg 24 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/Linley_Sambourne")\n }\n '