SSC CPO SI and ASI 2011 Paper

Three statements are given followed by four conclusions I, II, III and IV. You have to consider the statements to be true even if they seem to be at variance with commonly known facts. You have to decide which of the given conclusions, if any, follow the given statements.
Statements:
Some books are novels.
All novels are magazines.
Some magazines are journals.
Conclusions:
I. Some novels are journals.
II. Some books are magazines.
III. All books are magazines.
IV. No novel is a journal.