Assertion: black tufted marmoset | /r/HasProperty | believed
Facets:
Source sentences:
text: Though the black-tufted marmoset lives in small family groups, it is believed that they share their food source, sap trees, with other marmoset groups.
text: Though communication between black-tufted marmosets has not been studied thoroughly, it is believed that it communicates through vocalizations.