Assertion: ballpoint pen's pen | /r/HasProperty | a type of ink pen
Facets:
Source sentences:
text: Retractable pens are a type of ink pen which have a spring-loaded ink cartridge which retracts and extends outside a protective housing.
text: The retractable pen is a type of ink-pen which have a spring-loaded ink cartridge which retracts and extends outside a protective housing, the spring provides the tension that retracts the ink cartridge.