Assertion: collagen | /r/HasProperty | flexible
Facets:
Source sentences:
text: The collagens in the human body are strong and flexible.
text: The main type of fiber in this and other connective tissues is collagen, a flexible white protein.
text: When you have ample collagen, your skin, bones, connective tissues, cartilage, joints, and gut barrier all rely on collagen to be strong, flexible, and healthy.