Assertion: group's operation | /r/HasProperty | extensive
Facets:
value: quite
type: DEGREE
value: before august
type: TEMPORAL
Source sentences:
text: Richard H. Campbell, in The Silverplate Bombers, reports that XXI Bomber Command feared that Japanese survivors on Tinian were observing 509th operations, which had been quite extensive before August 1, and reporting them by clandestine radio to Tokyo.