taste perception vs sense datum

taste perception and sense datum both are nouns.

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

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

taste perception: 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 perception include aesthesis, esthesis, sensation, sense experience, sense impression.

taste perception (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