Assertion: neutron | /r/CapableOf | act as a 4he unit
Facets:
value: within the nucleus
type: LOCATION
value: for a while
type: TEMPORAL
Source sentences:
text: Further, it can happen that two protons and two neutrons in a nucleus can randomly find themselves together, experience the exceptionally large nuclear force that binds this combination, and act as a 4He unit within the nucleus, at least for a while.