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

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

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