Assertion: hamstring | /r/AtLocation | the back of the upper leg
Facets:
Source sentences:
text: The hamstrings are located on the back of the upper leg, and the quadriceps are located on the front of the upper leg.
text: The hamstrings are a group of muscles (ie, semimembranosus, semitendinosus, biceps femoris) located on the back of the upper leg.