alias remove_test {
var %a = iRwxatb
var %b = dgikoRswx
var %c = d,g,i,k,o,R,s,w,x
return $removecs(%a,%b) $removecs(%a,%c) $remove(%a,%b) $remove(%a,%c) <-> $removecs(iRwxatb,d,g,i,k,o,R,w,s,x)
; This should return atb but it doesn't. The last one works because the values we're typed in manually :x
}