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

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

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