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

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

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