Assertion: lepton | /r/HasAspect | a value of 0
Facets:
Source sentences:
text: In the electron flavor, lepton number is described in terms of electron number; electrons and electron neutrinos get a value of 1, positrons and electron antineutrinos get a value of -1, and all the other leptons (associated with muons or taus) have a value of 0, because they have no electron flavor.