Assertion: natural gas | /r/HasProperty | extracted through pipe
Facets:
value: to the surface
type: LOCATION
value: to provide energy
type: PURPOSE
Source sentences:
text: It is trapped in-between the spaces in the coal and can be extracted through pipes to the surface to provide energy required to generate electricity, provide heating and cooling at homes and industries, power manufacturing companies, used as fuels in cars and in the manufacturing of several products (watch the video: Facts about Natural Gas below).