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

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

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