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

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

*GRAMMAR*
fep -> BLUE 
 dax -> PURPLE 
 tufa -> YELLOW 
 kiki -> RED 
 u1 gazzer u2 -> [u1] [u2] 
 u1 wif x1 -> [x1] [x1] [u1] 
 u1 zup x1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 