Assertion: oil field | /r/HasProperty | one of the largest discoveries
Facets:
value: in the world
type: LOCATION
Source sentences:
text: Sizewise, Tengiz reservoir is 19 km (12 mi) wide and 21 km (13 mi) long Discovered in 1979, Tengiz oil field is one of the largest discoveries in recent history.
text: It is considered the largest offshore oil field in the world.