Assertion: wart | /r/CreatedBy | viral infection
Facets:
value: usually
type: TEMPORAL
value: unlike skin tags
type: OTHER
value: in the skin
type: LOCATION
Source sentences:
text: They are caused by a viral infection in the skin.
text: Warts are caused by viral infections, though they sometimes are accompanied by pus, which is caused by bacteria.
text: Unlike skin tags, warts are caused by a viral infection –
text: Warts themselves are usually caused by viral infections.