taste sensation vs sense datum

taste sensation and sense datum both are nouns.

Word	Noun	Adjective	Verb	Adverb
taste sensation	Yes	No	No	No
sense datum	Yes	No	No	No

As nouns, sense datum is a hypernym of taste sensation; that is, sense datum is a word with a broader meaning than taste sensation:

taste sensation: the sensation that results when taste buds in the tongue and throat convey information about the chemical composition of a soluble stimulus
sense datum: an unelaborated elementary awareness of stimulation

Other hypernyms of taste sensation include aesthesis, esthesis, sensation, sense experience, sense impression.

taste sensation (noun)	sense datum (noun)
the sensation that results when taste buds in the tongue and throat convey information about the chemical composition of a soluble stimulus	an unelaborated elementary awareness of stimulation