Assertion: impala | /r/CapableOf | react to human presence
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Source sentences:
text: The impalas were then placed where there was a high concentration of predators again, the reaction of the impalas to the predators was recorded, this data will now be used on collared impalas and monitored by anti poaching units who will be able to tell if the impalas are reacting to human presence or the threat of a predator.