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

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

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