Assertion: proton | /r/HasAspect | two up quarks
Facets:
Source sentences:
text: The proton has two up quarks( the lightest of all quarks and a major constituent of matter and a type of elementary particle) and one down quark( the second lightest), while a neutron is made up of one up quark and two down quarks.
text: The proton has two up quarks( the lightest of all quarks and a major constituent of matter and a type of elementary particle) and one down quark( the second lightest), while a neutron is made up of one up quark and two down quarks.