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

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

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