Assertion: penguin's bird | /r/HasProperty | procellariiformes
Facets:
Source sentences:
text: It suggests penguins are brothers of the birds of the order Procellariiformes, which includes albatrosses, petrels, and storm petrels.
text: Birds in the order Procellariiformes, also known as tubenoses, include diving petrels, gadfly petrels, albatrosses, shearwaters, fulmars, and prions, with about 100 living species in all.