Assertion: fingernail | /r/MadeOf | keratin
Facets:
Source sentences:
text: Fingernails are made from keratin , a protein and grow from a root matrix ) which is affected by the state of health of the rest of the body.
text: Fingernails are made from keratin , a protein and grow from a root matrix ) which is affected by the state of health of the rest of the body.