Assertion: dolphin | /r/HasProperty | porpoise
Facets:
value: to not confuse them
type: PURPOSE
value: occasionally
type: DEGREE
Source sentences:
text: If you've ever seen an animal at a marine show, it was almost certainly a dolphin, not a porpoise.
text: Though dolphins are occasionally referred to as porpoises, so as not to confuse them with the Dolphin fish, Mahi Mahi, actual porpoises are typically smaller, have more rounded, spade-shaped teeth & rounded dorsal fins.
text: To be exact, dolphins are cetaceans, like whales and porpoises, and they have to surface periodically to breathe air.