Query error: EndPointInternalError: The endpoint returned the HTTP status code 500. Response: b'\n{ "head": { "link": [], "vars": ["subject", "object"] },\n "results": { "distinct": false, "ordered": true, "bindings": [\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Roman_magic" }\t, "object": { "type": "literal", "value": "amulets" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Roman_magic" }\t, "object": { "type": "literal", "value": "herbs" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Roman_magic" }\t, "object": { "type": "literal", "value": "animal sacrifices" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Roman_magic" }\t, "object": { "type": "literal", "value": "figurines" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Roman_magic" }\t, "object": { "type": "literal", "value": "incantations" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Roman_magic" }\t, "object": { "type": "literal", "value": "inscribed stones" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Roman_magic" }\t, "object": { "type": "literal", "value": "lead tablets" }},\n { "subject": { "type": "uri", "value": "https://gptkb.org/entity/Roman_magic" }\t, "object": { "type": "literal", "value": "wax images" }} ] } }Virtuoso S1TAT Error RC...: Returning incomplete results, query interrupted by result timeout. Activity: 24 rnd 9 seq 0 same seg 2 same pg 2 same par 0 disk 0 spec disk 0B / 0 messa\n\nSPARQL query:\n\n SELECT ?subject ?object\n WHERE {\n ?subject <https://gptkb.org/prop/usedObjects> ?object .\n }'