In the question given below, two statements are given followed by two conclusions I and II. You have to consider the statements to be true even they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any follow from the given statements.

Statements:

All slates are pencils.

All slates are pens.

Conclusions:

I. Some pens are not pencils.

II. Some pens are pencils.