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

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

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