Assertion: echinoderm's arm | /r/HasProperty | extensions of the body
Facets:
Source sentences:
text: The arms are extensions of the body; each contains an extension of the body cavity, a radial canal, and body organs.
text: The arms are extensions of the body; each contains an extension of the body cavity, a radial canal, and body organs.
text: The arms are extensions of the body; each contains an extension of the body cavity, a radial canal, and body organs.