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

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

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