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

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

*GRAMMAR*
fep -> GREEN 
 tufa -> PINK 
 kiki -> BLUE 
 gazzer -> RED 
 x1 zup u1 -> [x1] [u1] 
 u1 dax -> [u1] [u1] 
 x1 lug x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 