Assertion: pen | /r/CapableOf | writing on leather hides
Facets:
value: on leather hides
type: LOCATION
Source sentences:
text: The first patent for ballpoint pens was issued on October 30th, 1888, to a gentleman by the name of John Loud, a leather tanner, who was working feverishly to create a pen that was capable of writing on leather hides.