*SUPPORT*
IN: tufa dax dax OUT: PURPLE YELLOW YELLOW
IN: kiki wif kiki OUT: BLUE BLUE BLUE BLUE BLUE
IN: gazzer gazzer tufa OUT: RED RED PURPLE
IN: gazzer OUT: RED
IN: kiki tufa OUT: BLUE PURPLE
IN: dax OUT: YELLOW
IN: gazzer lug dax OUT: YELLOW YELLOW RED YELLOW YELLOW
IN: tufa lug gazzer OUT: RED RED PURPLE RED RED
IN: gazzer blicket OUT: RED RED
IN: kiki tufa lug tufa OUT: BLUE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: gazzer lug gazzer OUT: RED RED RED RED RED
IN: dax tufa OUT: YELLOW PURPLE
IN: tufa kiki OUT: PURPLE BLUE
IN: dax lug kiki OUT: BLUE BLUE YELLOW BLUE BLUE

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

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