Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow from the statements.

Statements:
1. All books are magazines.
2. Some books are novels.

Conclusions:
I. Some magazines are books.
II. No magazine is a book.
III. No novel is a magazine.
IV. Some novels are books.

Only conclusions I and IV follow.