Assertion: anthracite | /r/HasProperty | carbonated
Facets:
value: highly
type: DEGREE
Source sentences:
text: Usually known as “hard coal,” anthracite coal is a form of clean-burning coal that is highly carbonated and contains low amounts of sulfur.
text: Anthracite coal is a highly-carbonated fossil fuel that will generate the highest heat of all the fossil fuels available, and the low sulfur content in Anthracite makes it an extremely clean-burning fuel.