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

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

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