Assertion: enamel | /r/HasProperty | colorless
Facets:
value: in a perfect state
type: LOCATION
Source sentences:
text: In a perfect state, enamel is colorless, but it does reflect underlying tooth structure with its stains since light reflection properties of the tooth are low.
text: Enamel, on the other hand, is also a colorless or opaque coating that is used to coat certain objects made up of metal and glass for protection.