Assertion: plutonium | /r/CapableOf | form a seventh
Facets:
value: at high temperature
type: LOCATION
value: within a limited pressure range
type: OTHER
Source sentences:
text: Plutonium normally has six allotropes and forms a seventh (zeta, ζ) at high temperature within a limited pressure range.
text: Plutonium normally has six allotropes and forms a seventh (zeta, ζ) under high temperature and a limited pressure range.