Assertion: wrinkle | /r/HasProperty | caused
Facets:
Source sentences:
text: These lines are caused by smiling, frowning, squinting, and other facial expressions.
text: Technically speaking, a wrinkle on the skin is caused when the underlying supportive connective structure of the skin (i.e. collagen, elastin, deep fat deposits, natural oils, and circulation) is weakened due to damage and/or the natural aging process.