Assertion: skate's boot | /r/MadeOf | leather
Facets:
value: generally
type: DEGREE
Source sentences:
text: The boot is generally made of molded plastic, leather (often synthetic), ballistic nylon, or a thermoformed composite material.
text: The boot is generally made of leather (often synthetic).
text: Hockey skates, which are used for ringette and ice hockey, have a boot that can be made of leather (usually synthetic leather) or plastic.