Assertion: fountain pen's ink | /r/HasProperty | harmful
Facets:
value: to a regular fountain pen
type: TRANSITIVE-OBJECT
value: for all practical purposes
type: PURPOSE
Source sentences:
text: Properly balanced ink does not contain excess soluble salts and is, for all practical purposes, not harmful.
text: So some of those inks that might be harmful to a regular fountain pen is not going to damage this pen.