Assertion: mayfly | /r/CapableOf | emerge in large groups
Facets:
value: sometimes
type: TEMPORAL
value: together
type: MANNER
Source sentences:
text: Mayflies emerge in large groups but have short lifespans.
text: They coordinate their emergence and mating times (both time of year and time of day) so that they leave their safe habitats and emerge together in large numbers in a very short period of time.
text: Mayflies sometimes emerge in such large numbers that they cover light posts, trees, and tall grasses, making them nuisances around homes and businesses.