Assertion: flea's blood | /r/HasProperty | human
Facets:
Source sentences:
text: The fact that fleas drink human blood made them a convenient performer to care for - a simple rolling up of the professor’s sleeve and the fleas could feed happily before their next performance and live for several months.
text: Human fleas mainly prefer pig and human blood, but they also feed on the blood of badgers, foxes, skunks and some other wild mammals.