Assertion: crude oil | /r/HasProperty | petroleum
Facets:
Source sentences:
text: Crude oil (petroleum) is a thick, black liquid found underground.
text: Through the process of distillation of the "rock oil" (petroleum) he received a kerosene-like substance, which was used in oil lamps by Russian churches and monasteries (though households still relied on candles).
text: Crude oil, also known as petroleum, is a naturally occurring thick, dark brown or greenish flammable liquid that is made of organic chemicals.
text: Pressure and heat changed some of this organic material into coal, some into oil (petroleum), and some into natural gas -- tiny bubbles of odorless gas.
text: What you know as oil is actually called petroleum or crude oil and may exist as a combination of liquid, gas, and sticky, tar-like substances.
text: Petroleum products are materials derived from crude oil (petroleum) as it is processed in oil refineries.
text: Crude oil (petroleum) is a thick, black liquid found underground.
text: Petroleum products are materials derived from crude oil (petroleum) as it is processed in oil refineries.
text: Through the process of distillation of the "rock oil" (petroleum) he received a kerosene-like substance, which was used in oil lamps by Russian churches and monasteries (though households still relied on candles).
text: Crude oil, also known as petroleum, is a naturally occurring thick, dark brown or greenish flammable liquid that is made of organic chemicals.