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

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

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