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

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

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