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

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

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