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

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

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