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

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

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