Question: What was the price of gold in 2018-7-26?
Paraphrase: In 2018-7-26, what was the price of gold?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q897 p:P2284 ?s . ?s ps:P2284 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'2018')) }