ID:140460
 
Code:
    var/K =input(usr,"Trade","What Pokemon do you want from them??") in list(M.contents2) 
var/L =input(usr,"Trade","What Pokemon are you willing to give???") in list(usr.contents2)
switch(input(M,"Trade","[usr] wants to trade his [L](Level [L:Level]) for your [K](Level [K:Level]) do you accept?") in list("Yes", "No"))

Problem description:

For some reason.. The inputs don't work. If I change it to in list("Yes", "No") it does.. but it doesn't like this.. Why?

I'm assuming M.contents2 is already a list, so in that case, don't encase them in list(M.contents2) Just use in M.contents2.