Assertion: baryon's quark | /r/CapableOf | come in three pairs
Facets:
value: almost always
type: DEGREE
Source sentences:
text: Quarks come in three pairs, called "generations".
text: An isolated quark has never been found, quarks appear to almost always be found in pairs or triplets with other quarks and antiquarks.
text: Quarks come in three pairs, called "generations".