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

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

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