Assertion: cigarette butt | /r/CapableOf | become litter
Facets:
value: every year
type: TEMPORAL
Source sentences:
text: Of those it is estimated that 4.5 trillion cigarette butts become litter every year.
text: It is estimated 4.5 trillion cigarette butts become litter every year.
text: Would cigarette butts become litter if they were this size?