Assertion: circulatory system's heart | /r/HasProperty | single pump
Facets:
Source sentences:
text: The heart of fish is, therefore, only a single pump (consisting of two chambers).
text: The heart of fish is therefore only a single pump (consisting of two chambers).
text: The heart of fish is, therefore, only a single pump (consisting of two chambers).
text: The heart of fish is therefore only a single pump (consisting of two chambers).