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

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

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