Assertion: lepton | /r/HasProperty | the electron neutrino
Facets:
value: up to this point
type: TEMPORAL
Source sentences:
text: Up to this point, the leptons that were known included the electron, the electron neutrino, and their antiparticles and the muon, the muon neutrino, and their antiparticles.
text: Up to this point, the leptons that were known included the electron, the electron neutrino, and their antiparticles and the muon, the muon neutrino, and their antiparticles.