Assertion: xi baryon | /r/HasProperty | either an up or down quark
Facets:
Source sentences:
text: Xi baryons, (Ξ0, Ξ−), are composed of two strange quarks and either an up or down quark.
text: Xi baryons, (Ξ0, Ξ−), are composed of two strange quarks and either an up or down quark.