Assertion: surface mining | /r/HasProperty | preferred
Facets:
value: often
type: DEGREE
value: much
type: DEGREE
value: by mining companies for several reasons
type: CAUSE
value: to mining
type: PURPOSE
Source sentences:
text: Surface mining is often preferred to sub-surface (underground mining) by mining companies for several reasons.
text: Surface mining is generally a much preferred approach to mining because it is less expensive and safer than subsurface mining.