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

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

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