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

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

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