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

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

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