is verb, 3rd person singular presenta determinerchimp noun, singular or masswho wh-pronounwas verb, past tensepart noun, singular or massof preposition or subordinating conjunctionthe determinergreat adjectiveape noun, singular or masslanguage noun, singular or massexperiment noun, singular or massaccording verb, gerund or present participleto toone cardinal numberprimatologist proper noun, singularhe personal pronoun
it personal pronounwas verb, past tensein preposition or subordinating conjunctionthe determiner1970 cardinal numbers proper noun, singularthat preposition or subordinating conjunctionthe determinerfamous adjectiveprimatologist proper noun, singularjane proper noun, singulargoodall proper noun, singularobserved verb, past participlea determinerunified verb, past tensecommunity noun, singular or mass