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

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

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