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

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

*GRAMMAR*
tufa -> RED 
 gazzer -> BLUE 
 kiki -> PURPLE 
 dax -> GREEN 
 x1 blicket x2 -> [x2] [x1] [x2] 
 u1 fep u2 -> [u1] [u2] 
 x1 lug u1 -> [x1] [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 