a -- array
a:1 -- array with 1 element (ie: they are in one group)
a:2 -- array with 2 elements (ie: they are in 2 groups, moderator and another group)
s -- string
s:1 -- string with 1 character (ie: 9)
s:2 -- string with 2 characters (ie: 10)
; -- delimeter between array elements
i:0 -- array index 0
i:1 -- array index 1
