Assertion: red flag exercise | /r/HasProperty | held at nellis air force base
Facets:
value: nevada
type: LOCATION
value: each year
type: TEMPORAL
value: while four
type: TEMPORAL
Source sentences:
text: Each year, four to six Red Flag exercises are held at Nellis Air Force Base, Nevada, while up to four more, dubbed Red Flag – Alaska, are held at Eielson Air Force Base, Alaska.