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

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

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