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

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

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