Assertion: pen | /r/HasProperty | given pen
Facets:
Source sentences:
text: Despite the fact that the fountain pen is a more modern variation of the dip pen, it still dates back centuries to 973 when Ma’ād al-Mu’izz, the caliph of the Maghreb requested a pen that wouldn’t stain and was given a pen with a built-in reservoir for the ink that could be held upside down without leaking.