Assertion: harrow's function | /r/HasProperty | primary
Facets:
Source sentences:
text: The drag harrow also kills some weeds that may be present, but it is not very efficient in doing so due to its highly flexible teeth, hence it is not one of its primary functions.
text: The drag harrow also kills some weeds that may be present, but it is not very efficient in doing so, and it is not one of its primary functions.