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

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

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