Assertion: iris's petal | /r/CapableOf | call standard
Facets:
value: often
type: TEMPORAL
Source sentences:
text: The Iris flower's characteristic feature is having three petals often called the "standards" and three outer petal-like sepals called the "falls".
text: Iris flowers have center upright petals called the standards, an outer petal called falls and a fuzzy line on the falls called the beard.
text: They have three upright petals called “standards” and three downward-facing sepals called “falls.