Assertion: cigarette butt | /r/PartOf | large part of #toronto litter
Facets:
Source sentences:
text: Cigarette butts make up a large part of #Toronto litter & take up to 12 years to break down.
text: Cigarette butts make up a large part of Toronto's litter, can take years to break down and contain toxic chemicals that can be released into our environment," reads an information page about litter on the city's website.