Assertion: acetaldehyde | /r/HasProperty | detected on seven sampling dates
Facets:
value: between july
type: TEMPORAL
value: between may
type: TEMPORAL
value: in the grand river
type: LOCATION
Source sentences:
text: No acetaldehyde was detected (0.9 µg/L) on seven sampling dates between May 11 and July 21, 1994, in the Grand River.