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

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

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