Assertion: cirrus | /r/Synonym | mares tails
Facets:
value: often
type: TEMPORAL
value: commonly
type: DEGREE
Source sentences:
text: Cirrus clouds (also called Mares tails) are thin wispy clouds.
text: They are commonly known as "mare's tails" because they are shaped like the tail of a horse.
text: This photo shows transparent to translucent cirrus streaks, and illustrates why cirrus clouds are often described as mare's tails.