Assertion: kidney | /r/HasProperty | a part of the excretory system
Facets:
Source sentences:
text: The kidneys are a part of the excretory system.
text: Kidneys are part of the excretory system (urinary system).
text: The liver is a part of the digestive system whereas the kidney is a part of the excretory system.
text: The kidneys are a part of the excretory system.
text: The kidneys are a part of the excretory system.