*SUPPORT*
IN: tufa OUT: RED
IN: dax kiki zup lug zup OUT: YELLOW YELLOW YELLOW GREEN
IN: tufa dax OUT: RED GREEN
IN: fep fep fep gazzer OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: zup OUT: YELLOW
IN: fep tufa lug fep OUT: BLUE BLUE RED
IN: fep kiki dax OUT: GREEN GREEN BLUE
IN: zup kiki tufa OUT: RED RED YELLOW
IN: zup lug zup OUT: YELLOW YELLOW
IN: fep kiki fep lug tufa OUT: RED BLUE BLUE BLUE
IN: zup kiki zup OUT: YELLOW YELLOW YELLOW
IN: fep fep fep kiki fep OUT: BLUE BLUE BLUE BLUE BLUE
IN: zup kiki tufa kiki tufa OUT: RED RED RED RED RED RED YELLOW
IN: dax fep lug zup OUT: YELLOW GREEN BLUE

*QUERY*
IN: fep lug dax OUT: GREEN BLUE
IN: dax OUT: GREEN
IN: fep OUT: BLUE
IN: fep tufa gazzer OUT: BLUE RED BLUE RED
IN: zup zup fep gazzer OUT: YELLOW YELLOW BLUE YELLOW YELLOW BLUE
IN: tufa dax fep OUT: RED GREEN BLUE
IN: tufa gazzer lug dax gazzer OUT: GREEN RED RED GREEN RED RED
IN: fep zup kiki tufa gazzer OUT: BLUE RED RED YELLOW BLUE RED RED YELLOW
IN: tufa dax kiki dax OUT: RED GREEN GREEN GREEN
IN: tufa gazzer OUT: RED RED

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