*SUPPORT*
IN: zup lug OUT: RED RED
IN: zup OUT: RED
IN: dax dax gazzer tufa OUT: YELLOW PINK YELLOW
IN: tufa OUT: PINK
IN: zup gazzer blicket OUT: GREEN RED
IN: blicket OUT: GREEN
IN: blicket gazzer zup OUT: RED GREEN
IN: dax gazzer tufa OUT: PINK YELLOW
IN: blicket gazzer blicket OUT: GREEN GREEN
IN: blicket gazzer tufa OUT: PINK GREEN
IN: tufa lug OUT: PINK PINK
IN: blicket dax OUT: GREEN YELLOW
IN: dax OUT: YELLOW
IN: blicket dax gazzer blicket OUT: GREEN GREEN YELLOW

*QUERY*
IN: blicket zup lug OUT: GREEN RED RED
IN: tufa gazzer blicket OUT: GREEN PINK
IN: tufa blicket OUT: PINK GREEN
IN: zup blicket lug OUT: RED GREEN GREEN
IN: dax gazzer dax OUT: YELLOW YELLOW
IN: blicket lug OUT: GREEN GREEN
IN: dax kiki OUT: YELLOW YELLOW
IN: dax dax gazzer blicket OUT: YELLOW GREEN YELLOW
IN: blicket gazzer dax OUT: YELLOW GREEN
IN: dax lug OUT: YELLOW YELLOW

*GRAMMAR*
zup -> RED 
 blicket -> GREEN 
 tufa -> PINK 
 dax -> YELLOW 
 u1 kiki -> [u1] [u1] 
 u1 lug -> [u1] [u1] 
 u1 gazzer u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 