Assertion: moment | /r/HasProperty | observed at 8:46 a.m.
Facets:
Source sentences:
text: At that even, moments of silence are observed at 8:46 a.m. and 9:03 a.m. to mark when the planes struck each tower and again at 9:59 a.m. and 10:29 a.m. to mark when each tower fell.