Assertion: original world trade center | /r/CapableOf | collapse on september
Facets:
value: at 5:20 p.m.
type: TEMPORAL
Source sentences:
text: At 5:20 p.m. on September 11, 2001, 7 World Trade Center began to collapse with the crumbling of the east penthouse; it collapsed completely at 5:21 p.m. owing to uncontrolled fires causing structural failure.