Assertion: slate | /r/HasProperty | cut with specialized tool
Facets:
value: in the quarry
type: LOCATION
value: expertly
type: MANNER
value: by striking parallel
type: MANNER
Source sentences:
text: When expertly "cut" by striking parallel to the foliation, with a specialized tool in the quarry, many slates will display a property called fissility, forming smooth flat sheets of stone which have long been used for roofing, floor tiles, and other purposes.