It's a prepositional phrase.
Heaven is a noun.
Heaven is a noun; knows is a verb.
What figure of speech is used in the line ''spring is the daughter of heaven and earth.
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
The part of speech for "unfamiliar" is an adjective.
The part of speech of "came" is a verb.
The part of speech for "twirl" is a verb.
The part of speech for "explicit" is an adjective.