Assertion: bearing's roller | /r/HasProperty | big improvement
Facets:
value: over dragging things
type: OTHER
Source sentences:
text: Probably the first rollers were sticks or logs, which were a big improvement over dragging things across the ground, but still pretty hard work.
text: Probably the first rollers were sticks or logs, which were a big improvement over dragging things across the ground, but still pretty hard work.