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

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

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