Assertion: fountain pen's ink | /r/HasProperty | 3 pens = 96 cleanings
Facets:
Source sentences:
text: For my testing, I used the following pens, picked to represent a range of nib sizes, flex, age and availability (and also ease of cleaning - 32 inks x 3 pens = 96 cleanings, and I had to be thorough each time to avoid contamination):