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

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

*GRAMMAR*
fep -> PURPLE 
 tufa -> YELLOW 
 gazzer -> BLUE 
 kiki -> RED 
 u1 lug u2 -> [u2] [u1] 
 u1 zup -> [u1] [u1] 
 x1 dax u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 