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

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

*GRAMMAR*
dax -> PURPLE 
 fep -> YELLOW 
 zup -> RED 
 kiki -> BLUE 
 u1 lug -> [u1] [u1] [u1] [u1] [u1] [u1] 
 u1 tufa u2 -> [u2] [u1] 
 x1 wif x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 