Question: "Who is the namesake of Van der Waals equation, who died in 1923-3-8?"
Paraphrase: "Who is the namesake of Van der Waals equation, who died in 1923-3-8?"
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q254329 wdt:P138 ?answer . ?answer wdt:P570 ?x FILTER(contains(YEAR(?x),'1923'))}
Answer: Johannes Diderik van der Waals