Assertion: coping saw's blade | /r/HasProperty | changed
Facets:
value: easily
type: MANNER
value: every so often
type: TEMPORAL
Source sentences:
text: The blade of a coping saw also needs to be changed every so often because it gets dull, just like every other saw blade.
text: The blades can be changed easily but the procedure does have a learning curve, patience is required!