Assertion: lung's alveoli | /r/HasProperty | sac-shaped bodies
Facets:
value: at the tip of alveolar ducts
type: LOCATION
Source sentences:
text: The alveoli are sac-shaped bodies present inside the lungs, at the tip of alveolar ducts.
text: The alveoli are cup-shaped structures found at the end of the terminal bronchioles and surrounded by capillaries.