Assertion: manatee's number | /r/CapableOf | come for secretive amazonian manatee
Facets:
value: by
type: OTHER
Source sentences:
text: Numbers are hard to come by, especially for the secretive Amazonian manatee; the IUCN says the estimate of 10,000 manatees should be regarded with caution because the numbers are supported by little empirical data.