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

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

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