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

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

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