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

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

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