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

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

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