electronics subject again.. help pls?..?

Pls describe two possible connections on how the three two-input AND gates can be wired to function as a four-input AND gate. Also pls indicate the boolean expression for each output of the AND gate.. thnx in advance!!..
 
do you know how much typing that would involve?

you can google and find answers, and i can design some myself.. but i cant take 9 hours to type it out.
 
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