Assertion: porpoise | /r/HasProperty | mammal
Facets:
Source sentences:
text: Since porpoises are mammals, they have live births.
text: Porpoises are mammals and not fish.
text: For example, both dolphins and porpoises are mammals.
text: Both dolphins and porpoises are mammals.
text: Dolphins, porpoises, and whales are all mammals called cetaceans, which is from the Greek word meaning “sea monster.
text: Since porpoises are mammals and not fish, they have lungs and need to come to the water’s surface to get air.
text: Porpoises and dolphins are mammals.