Assertion: circle | /r/AtLocation | field
Facets:
value: on 8 august
type: TEMPORAL
value: in duhamel
type: LOCATION
value: in canada
type: LOCATION
value: in alberta
type: LOCATION
Source sentences:
text: For example, on 8 August 1967, three circles were found in a field in Duhamel, Alberta, Canada; Department of National Defence investigators concluded that it was artificial but couldn't say who made them or how.