Assertion: bracken | /r/HasProperty | sprayed with the herbicide asulam
Facets:
value: in 1978
type: TEMPORAL
value: in four plots
type: LOCATION
Source sentences:
text: In four plots bracken was sprayed with the herbicide asulam in 1978, four plots were sprayed with asulam in 1978 and 1979, and in four plots were not sprayed.