Syllogismzz. --- 2

Given below are three statements followed by four conclusions. Take the three statements to be true even if they vary from commonly known facts. Read the statements and decide which conclusions follow logically from the statements.

Statements

1. Some keys are staplers.
2. Some staplers are stickers.
3. All stickers are pens.

Conclusions

1. Some pens are staplers.
2. Some stickers are keys.
3. No sticker is a key.
4. Some staplers are keys.