Assertion: fountain pen's ink | /r/HasProperty | corrosive
Facets:
value: ideally
type: DEGREE
value: highly
type: DEGREE
Source sentences:
text: Furthermore, most inks were highly corrosive and full of sedimentary inclusions.
text: Inks ideally should be fairly free-flowing, free of sediment, and non-corrosive, though this generally excludes permanence and prevents large-scale commercial use of some colored dyes.
text: In addition, the inks were corrosive and damaged the pens easily.