In Noun phrases^x, Whom^x, Relative pronouns^x

The noun phrase in question is: that reactions can happen slower at lower temperatures Informally stated, anything that occurs in its context the way a noun might occur is a noun phrase. All subjects and objects are noun phrases, even if they are lengthy groups of words. The person whom I saw...

Who, whom and whose are relative pronouns. Who and whom are used for persons. They introduce relative clauses postmodifying the head of a noun phrase, and they are identical in form with interrogative pronouns but function differently. Who: nominative form. "The student who failed the test...