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

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

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