Question: Who is the operator and powerplant of Rockwell B-1 Lancer?
Paraphrase: Who is in control of the energy plant, Rockwell B-1 Lancer?
SPARQL (Wikidata): SELECT ?ans_1 ?ans_2 WHERE { wd:Q218636 wdt:P137 ?ans_1 . wd:Q218636 wdt:P516 ?ans_2 }
Answer: United States Air Force, General Electric F101