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

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

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