Assertion: chimpanzee's capacity | /r/HasProperty | mental
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Source sentences:
text: She discovered that chimpanzees had the mental capacity to not only use simple tools but to actually make them as well, something that was previously thought to be uniquely human.
text: Author You-Sheng Li wrote in a 2005 book that it was doubtful that chimpanzees have the mental capacity to attempt suicide.
text: Author You-Sheng Li wrote in a 2005 book that it was doubtful that chimpanzees have the mental capacity to attempt suicide.