Assertion: ethmoid bone | /r/HasProperty | lightweight
Facets:
value: relatively
type: DEGREE
value: because of its spongy construction
type: CAUSE
Source sentences:
text: It is a cubical shape and is relatively lightweight because of its spongy construction.
text: It is lightweight due to its spongy, air-filled construction and is located at the roof of the nose and between the two orbits.