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

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

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