Assertion: bursa | /r/HasProperty | filled with fluid
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: A bursa is a tiny sac filled with fluid that protects the bones, tendons and muscles by reducing friction, notes WebMD.
text: A bursa is a sac that is filled with liquid and may be located at the joints (i.e. shoulders or knees).
text: A bursa is a sac filled with fluid that acts as a cushion between tendons, bones, and joints.
text: A bursa is a small sac, usually filled with fluid, that acts as a cushion between bones and soft tissues, says the American Academy of Orthopaedic Surgeons 1.