Assertion: circulatory system's part | /r/HasProperty | blood vessels
Facets:
Source sentences:
text: The major parts of the circulatory system are the heart, blood vessels, and blood.
text: The main parts of the circulatory system are the heart, the blood, and the blood vessels.
text: The essential parts of the circulatory system are the blood, blood vessels, and the heart, though many secondary components help keep the system working.