Assertion: stretch | /r/HasProperty | intended for hamstring
Facets:
Source sentences:
text: For example, a stretch intended primarily for the hamstrings may also make some demands upon the calves and buttocks (and even the lower back)
text: In this case, it would be beneficial to stretch the lower back, buttocks, and calves first (in that order, using stretches intended primarily for those muscles) before they need to be used in a stretch that is intended primarily for the hamstrings.