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

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

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