Question: What is the Lake inflows and the reservoir created of Hoover_Dam ?
Paraphrase: What is Hoover Dam's Lake inflow and reservoir?
SPARQL (Wikidata): SELECT ?ans_1 ?ans_2 WHERE { wd:Q172822 wdt:P200 ?ans_1 . wd:Q172822 wdt:P4661 ?ans_2 }
Answer: Colorado River, Lake Mead