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 conclusion logically follow(s) from the statements.

Statements:

Some words are books.

No letters are books.

Some letters are pages.

Conclusions:

I. Some words are pages.

II. All books are pages is a possibility.

III. All letters are not words.

IV. Some books are not pages.