Assertion: hydrocarbon | /r/CapableOf | remain over long periods of time
Facets:
Source sentences:
text: They are formed from the compression of animal and plant remains over long periods of time, and are pulled from porous rocks such as sandstone, limestone, and shale, where they pool and concentrate.
text: Hydrocarbons are a classification of organic compounds, consisting of carbon and hydrogen, formed from the compression of animal and plant remains over long periods of time.