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

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

*GRAMMAR*
tufa -> BLUE 
 lug -> PURPLE 
 dax -> GREEN 
 kiki -> YELLOW 
 u1 gazzer -> [u1] [u1] 
 x1 blicket x2 -> [x2] [x1] 
 u1 fep -> [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 