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

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

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