Assertion: cow's group | /r/MadeOf | both the echinoderms
Facets:
Source sentences:
text: The Bilateria include the protostomes—in which many groups of invertebrates are found, such as nematodes, arthropods, and molluscs—and the deuterostomes, containing both the echinoderms as well as the chordates, the latter containing the vertebrates.