Assertion: contortionist's flexibility | /r/HasProperty | unusual natural
Facets:
Source sentences:
text: the article mentions that contortionists have an "unusual natural" flexibility.
text: Typically, contortionists have an unusual innate flexibility that they perfect with stretching and training.
text: In general, "contortionists" have unusual natural flexibility, which is then enhanced through gymnastic training, or they put themselves through intense, vigorous and painful training to gain this flexibility.