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

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

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