Select the pronouns that relate, or carry the mind back, to a noun going before, and join to that noun a modifying statement, in the following sentences:—

1.My brother found the ball which he lost.
2.I saw the man who made that wheel.
3.Mary has the book that I bought.

A sentence that is part of a larger sentence is called a clause.

The clause that expresses the principal thought of a sentence is called the principal or independent clause; as, My brother found the ball which he lost.

The clause that depends on some other part of the sentence for its meaning is called a dependent or subordinate clause; as, My brother found the ball which he lost.

A word that relates to a preceding noun or pronoun, and connects a dependent clause with that noun or pronoun, is called a relative pronoun.

The word to which a pronoun relates is called its antecedent.

The relative pronouns are, who, which, that, what, as, and but.

1. Who is applied to persons; as, He knew the man who did it.

2. Which is applied to animals and to things without life; as This is the deer which he shot. I want the pen which you have.