Profiling results:
Query executed in 57 ms and returned 0 result(s)
Total used memory: 1.1M
Pre-execution time: 2 ms (3.5%)
Post-processing time: 0 ms (0.0%)

prefix : <http://api.stardog.com/>
prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
prefix xsd: <http://www.w3.org/2001/XMLSchema#>
prefix owl: <http://www.w3.org/2002/07/owl#>
prefix stardog: <tag:stardog:api:>

Slice(offset=0, limit=600) [#1], results: 0, wall time: 0 ms (0.0%)
`─ Distinct [#1], memory: 192K (17.6%), results: 0, wall time: 1 ms (1.8%)
   `─ Projection(?verbalizedText, ?isCorrect, ?qId, ?questionText) [#1], results: 0, wall time: 0 ms (0.0%)
      `─ Bind(IF(?qaF1score = "1.0"^^xsd:decimal, "True", "False") AS ?isCorrect) sortedBy=?answerCandidate [#1], results: 0, wall time: 0 ms (0.0%)
         `─ MergeJoin(?answerCandidate) [#1], results: 0, wall time: 0 ms (0.0%)
            +─ MergeJoin(?answerCandidate) [#8.5K], results: 1, wall time: 0 ms (0.0%)
            │  +─ Scan[SPOC](<urn:fqaac:experiment:qanswer:qald-9-plus-wikidata:test:en>, <http://www.w3.org/ns/prov#generated>, ?answerCandidate) [#8.1K], results: 1, wall time: 0 ms (0.0%)
            │  `─ Scan[PSOC](?answerCandidate, <urn:fqaac:qaF1Score>, ?qaF1score) [#17K], results: 1 (with gaps), wall time: 0 ms (0.0%)
            `─ Sort(?answerCandidate) [#1], results: 0 (with gaps), wall time: 0 ms (0.0%)
               `─ Filter("en" = Lang(?verbalizedText)) [#1], results: 0, wall time: 0 ms (0.0%)
                  `─ MergeJoin(?nl) [#82], results: 0, wall time: 0 ms (0.0%)
                     +─ MergeJoin(?nl) [#1.7K], results: 1, wall time: 0 ms (0.0%)
                     │  +─ Scan[POSC](?nl, <urn:fqaac:algorithm>, "2022") [#1.7K], results: 1, wall time: 0 ms (0.0%)
                     │  `─ Scan[PSOC](?nl, <urn:fqaac:text>, ?verbalizedText) [#1.7K], results: 1 (with gaps), wall time: 0 ms (0.0%)
                     `─ Sort(?nl) [#1.0K], results: 0 (with gaps), wall time: 0 ms (0.0%)
                        `─ HashJoin(?qId) [#1.0K], memory: 352K (32.4%), results: 0, wall time: 6 ms (10.5%)
                           +─ Service <http://user:pass@host:port/RDFized-datasets/query>  {
                           │  +─ Filter("en" = Lang(?questionText))
                           │  +─ `─ {
                           │  +─    `─ Scan[SPO](?qId, ?hasQuestion, ?questionText)
                           │  +─    `─ VALUES (?hasQuestion) {
                           │  +─       +─ ( <urn:qado#correctedQuestion> )
                           │  +─       +─ ( <urn:qado#hasQuestion> )
                           │  +─       +─ ( <urn:qado#questionEng> )
                           │  +─       `─ ( <urn:qado#questionText> )
                           │  +─       }
                           │  +─    }
                           │  }, results: 1.0K, wall time: 37 ms (64.9%)
                           `─ MergeJoin(?answerCandidate) [#1.7K], results: 2.0K, wall time: 4 ms (7.0%)
                              +─ Scan[PSOC](?answerCandidate, <urn:fqaac:relatedTo>, ?qId) [#16K], results: 697 (with gaps), wall time: 2 ms (3.5%)
                              `─ Scan[PSOC](?answerCandidate, <urn:fqaac:hasNaturalLanguageRepresentation>, ?nl) [#2.1K], results: 2.0K (with gaps), wall time: 4 ms (7.0%)