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

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

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