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

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

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