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

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

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