Assertion: opal's color | /r/HasProperty | red
Facets:
value: especially
type: DEGREE
Source sentences:
text: The basic color is orange or red, both colors are related to fire thus, this variety is named accordingly.
text: A white opal in a larger size loaded with color (especially reds, pinks and oranges) will command a premium price.
text: White opal on the other hand displays orange-red and greenish-yellow colors.