Assertion: proton | /r/HasProperty | gluon
Facets:
Source sentences:
text: A modern perspective has a proton composed of the valence quarks (up, up, down), the gluons, and transitory pairs of sea quarks.
text: A modern perspective has a proton composed of the valence quarks (up, up, down), the gluons, and transitory pairs of sea quarks.