Assertion: cleat | /r/CapableOf | employ on natural turfs
Facets:
value: heretofore
type: TEMPORAL
Source sentences:
text: It has also been found that the cleats employed heretofore on natural turfs will not develop the desired traction when employed on artificial turf.
text: It has also been found that the cleats employed heretofore on natural turfs will not develop the desired traction when employed on artificial turf.