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

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

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