Assertion: ballpoint pen's ink | /r/MadeOf | 15 percent
Facets:
value: to 45 percent
type: OTHER
value: by weight
type: OTHER
value: generally
type: DEGREE
Source sentences:
text: Erasable ink generally consists of 15 percent to 45 percent (by weight) natural rubber that is dissolved in a series of volatile organic solvents with varying boiling points.