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

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

*GRAMMAR*
fep -> PURPLE 
 tufa -> YELLOW 
 zup -> RED 
 lug -> BLUE 
 x1 kiki u1 -> [u1] [x1] 
 x1 dax x2 -> [x2] [x1] 
 u1 gazzer u2 -> [u2] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 