Assertion: column ozone | /r/CapableOf | decline below pre-1980 values
Facets:
value: between 1996
type: TEMPORAL
value: for mid-latitudes
type: LOCATION
value: between 1980
type: TEMPORAL
Source sentences:
text: Total column ozone declined below pre-1980 values between 1980 and 1996 for mid-latitudes.