Assertion: graphite | /r/HasProperty | useful
Facets:
value: as drawing tool
type: MANNER
value: as a writing
type: MANNER
Source sentences:
text: Graphite is useful if you have some numeric values that change over time and you want to graph them.
text: Graphite is a crystalline form of carbon and is useful as a writing and drawing tool, as only the slightest pressure is needed to leave a mark.