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

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

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