Assertion: anthracite | /r/HasProperty | calcined in pot furnaces
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: In China, anthracite is usually calcined in electric calciners, rotary kilns and pot furnaces, and the anthracite produced in electric calciners is called as electrically calcined coal (ECA for short) while the anthracite produced in other two calciners is called as gas calcined coal (GCA for short).