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

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

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