Assertion: bladder | /r/HasProperty | collapsible sac
Facets:
Source sentences:
text: The bladder is a collapsible sac lying in the pelvis.
text: The Bladder: The bladder is a collapsible sac lying in the pelvis.
text: The bladder is a collapsible sac lying in the pelvis.
text: The bladder is a collapsible sac lying in the pelvis.