*SUPPORT*
IN: zup dax OUT: RED RED RED RED RED RED
IN: zup tufa OUT: RED BLUE
IN: tufa dax OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: kiki lug OUT: GREEN GREEN
IN: zup lug OUT: RED RED
IN: kiki OUT: GREEN
IN: kiki gazzer lug lug OUT: GREEN PINK GREEN PINK GREEN PINK GREEN PINK
IN: gazzer dax OUT: PINK PINK PINK PINK PINK PINK
IN: tufa kiki tufa kiki OUT: BLUE GREEN BLUE GREEN
IN: gazzer fep OUT: PINK PINK PINK PINK
IN: tufa lug OUT: BLUE BLUE
IN: kiki dax OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: tufa gazzer lug lug OUT: BLUE PINK BLUE PINK BLUE PINK BLUE PINK
IN: kiki gazzer fep OUT: GREEN PINK GREEN PINK GREEN PINK GREEN PINK

*QUERY*
IN: zup OUT: RED
IN: tufa OUT: BLUE
IN: tufa zup OUT: BLUE RED
IN: zup zup fep OUT: RED RED RED RED RED RED RED RED
IN: gazzer OUT: PINK
IN: kiki fep OUT: GREEN GREEN GREEN GREEN
IN: gazzer lug OUT: PINK PINK
IN: tufa tufa OUT: BLUE BLUE
IN: zup kiki OUT: RED GREEN
IN: tufa lug fep OUT: BLUE BLUE BLUE BLUE BLUE BLUE BLUE BLUE

*GRAMMAR*
zup -> RED 
 kiki -> GREEN 
 gazzer -> PINK 
 tufa -> BLUE 
 x1 lug -> [x1] [x1] 
 x1 fep -> [x1] [x1] [x1] [x1] 
 x1 dax -> [x1] [x1] [x1] [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 