analysis vs pleasure-pain principle

analysis and pleasure-pain principle both are nouns.

Word	Noun	Adjective	Verb	Adverb
analysis	Yes	No	No	No
pleasure-pain principle	Yes	No	No	No

analysis (noun)	pleasure-pain principle (noun)
an investigation of the component parts of a whole and their relations in making up the whole	(psychoanalysis) the governing principle of the id; the principle that an infant seeks gratification and fails to distinguish fantasy from reality
a set of techniques for exploring underlying motives and a method of treating various mental disorders; based on the theories of Sigmund Freud
the abstract separation of a whole into its constituent parts in order to study the parts and their relations
a branch of mathematics involving calculus and the theory of limits; sequences and series and integration and differentiation
a form of literary criticism in which the structure of a piece of writing is analyzed
the use of closed-class words instead of inflections: e.g., `the father of the bride' instead of `the bride's father'