Assertion: natural gas | /r/HasProperty | good replacement
Facets:
value: often
type: TEMPORAL
value: for oil
type: OTHER
Source sentences:
text: Natural gas appears to be a good replacement for oil.
text: Natural gas is often considered to be a good stepping stone between more harmful fossil fuels such as oil and petroleum, and the eventual move to sustainable, renewable sources.
text: Perhaps we shouldn't ask whether natural gas is a good source of energy, but instead examine what makes a good energy source in the first place.