Ostwald's theory of indicators vs chemistry

Ostwald's theory of indicators and chemistry both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ostwald's theory of indicators	Yes	No	No	No
chemistry	Yes	No	No	No

Ostwald's theory of indicators (noun)	chemistry (noun)
(chemistry) the theory that all indicators are either weak acids or weak bases in which the color of the ionized form is different from the color before dissociation	the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
	the way two individuals relate to each other
	the chemical composition and properties of a substance or object