Assertion: raven | /r/CapableOf | solve problem
Facets:
Source sentences:
text: Not only can ravens solve problems, but they can outsmart one another as well.
text: Not only can ravens solve problems, but they can outsmart one another as well.
text: Ravens are ‘inventors’, implying that they can solve problems and can learn from each other reflect a flexible capacity for intelligent insight unusual among non-human animals.