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

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

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