Assertion: starfish's disk | /r/HasProperty | pentaradial symmetry
Facets:
Source sentences:
text: Starfish typically have five or more "arms" which radiate from an indistinct disk (pentaradial symmetry).
text: They exhibit a superficially radial symmetry, typically with five or more "arms" which radiate from an indistinct disk (pentaradial symmetry).