Assertion: earthworm | /r/HasAspect | zero hearts
Facets:
Source sentences:
text: In fact, depending on the definition of "heart," earthworms can be said to have either 10, or zero hearts.
text: That said, a human heart, for instance, has multiple chambers, while aortic arches have only one; if you define a heart as having multiple chambers, then an earthworm would have zero hearts.