Assertion: river dolphin | /r/CapableOf | comprise extant families
Facets:
Source sentences:
text: The river dolphins comprise the extant families Platanistidae (the Indian dolphins) (Old World family), Iniidae (the Amazonian dolphins) and Pontoporiidae (the brackish dolphins) (New World families).
text: The river dolphins comprise the extant families Platanistidae (the Indian dolphins) (Old World family), Iniidae (the Amazonian dolphins) and Pontoporiidae (the brackish dolphins) (New World families).