Assertion: enamel | /r/HasProperty | observed
Facets:
value: carefully
type: MANNER
Source sentences:
text: Enamels with expansions lower than about 300 should be carefully observed.
text: Enamels with expansions of less than perhaps 275 should be carefully observed.
text: Enamels which do not fall within the range of 275-330 should be carefully observed for cracking or chipping.