Assertion: fountain pen | /r/HasProperty | a type of pen
Facets:
Source sentences:
text: A fountain pen is a type of pen that uses a built-in ink reservoir that can be filled with one of many varieties of ink from cartridges or a bottle.
text: Arguably the most elegant and defining writing instrument, the fountain pen is one style of pen that the true writing connoisseur cannot live without.
text: …stimulated the development of the fountain pen, a type of pen in which ink is held in a reservoir and passes to the writing point through capillary channels.