Assertion: collagen | /r/HasProperty | responsible for keeping the skin
Facets:
Source sentences:
text: Collagen is responsible for keeping the skin strong and firm, and also plays an important role in wound healing.
text: Collagen is responsible for keeping skin strong and firm, and also plays an important role in wound healing.
text: Collagen is responsible for keeping the skin strong and firm, and also plays an important role in wound healing.
text: Collagen is a protein that is responsible for keeping the skin strong, firm, and youthful.
text: Increasing collagen production in the skin is important because collagen is responsible for keeping the skin strong, firm, and youthful.