Assertion: collagen | /r/PartOf | muscle
Facets:
Source sentences:
text: Collagen is a major component of connective tissues that make up several body parts, including tendons, ligaments, muscles, and skin.
text: Collagen is a major component of connective tissues that make up several body parts, including tendons, ligaments, muscles, and skin.
text: It is a major component of connective tissues that make up several body parts, including tendons, ligaments, muscles, and skin.