Conclusion:

Some pages are sheets. All sheets are pens.

Statements:

1) All pages are sheets. All sheets are paper. All papers are pens.

2) All pages are sheets. Some pens are pages. Some sheets are paper.

3) All sheets are paper. All papers are pens. Some pages are pens.

4) Some pages are sheets. No pen is paper. All sheets are paper.

5) None of these