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

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

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