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

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

*GRAMMAR*
zup -> PURPLE 
 kiki -> BLUE 
 dax -> RED 
 wif -> GREEN 
 x1 gazzer x2 -> [x1] [x2] 
 u1 fep x1 -> [x1] [x1] [u1] 
 u1 lug -> [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 