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

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

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