*SUPPORT*
IN: dax tufa kiki fep gazzer OUT: PURPLE RED YELLOW
IN: kiki kiki tufa gazzer OUT: PURPLE YELLOW PURPLE
IN: gazzer kiki zup OUT: YELLOW PURPLE BLUE
IN: kiki tufa gazzer OUT: YELLOW PURPLE
IN: kiki tufa gazzer fep dax OUT: YELLOW PURPLE RED
IN: kiki OUT: PURPLE
IN: dax tufa gazzer OUT: YELLOW RED
IN: gazzer lug OUT: YELLOW YELLOW
IN: gazzer tufa gazzer OUT: YELLOW YELLOW
IN: gazzer zup OUT: YELLOW BLUE
IN: gazzer dax dax lug fep dax fep kiki OUT: YELLOW RED RED RED RED PURPLE
IN: dax OUT: RED
IN: dax fep zup fep kiki OUT: RED BLUE PURPLE
IN: zup gazzer tufa kiki OUT: BLUE PURPLE YELLOW

*QUERY*
IN: zup OUT: BLUE
IN: kiki tufa zup OUT: BLUE PURPLE
IN: gazzer tufa dax OUT: RED YELLOW
IN: kiki kiki dax lug fep kiki fep kiki OUT: PURPLE PURPLE RED RED PURPLE PURPLE
IN: kiki kiki OUT: PURPLE PURPLE
IN: dax lug OUT: RED RED
IN: zup lug OUT: BLUE BLUE
IN: gazzer dax tufa dax fep kiki OUT: YELLOW RED RED PURPLE
IN: gazzer tufa zup OUT: BLUE YELLOW
IN: kiki lug fep dax OUT: PURPLE PURPLE RED

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