Assertion: convoy | /r/AtLocation | anti-submarine patrol
Facets:
value: by 4:00 a.m.
type: TEMPORAL
Source sentences:
text: The convoy received Ultra information on the latest U-boat positions from the Admiralty and Swordfish aircraft were on anti-submarine patrol by 4:00 a.m. dodging a BV 138 and a Ju 88, which were faster and better armed.