sex activity vs provoke

sex activity is a noun but provoke is not a noun.

Word	Noun	Adjective	Verb	Adverb
sex activity	Yes	No	No	No
provoke	No	No	Yes	No

sex activity (noun)	provoke (noun)
activities associated with sexual intercourse

sex activity (verb)	provoke (verb)
	provide the needed stimulus for
	evoke or provoke to appear or occur
	call forth (emotions, feelings, and responses)
	annoy continually or chronically