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

*QUERY*
IN: kiki fep OUT: RED RED
IN: tufa kiki dax OUT: PINK RED RED
IN: gazzer dax OUT: BLUE BLUE
IN: tufa kiki OUT: PINK RED
IN: kiki zup kiki OUT: RED RED
IN: tufa fep OUT: PINK PINK
IN: kiki zup tufa OUT: RED PINK
IN: tufa zup gazzer OUT: PINK BLUE
IN: gazzer blicket dax OUT: BLUE YELLOW YELLOW
IN: gazzer OUT: BLUE

*GRAMMAR*
blicket -> YELLOW 
 kiki -> RED 
 tufa -> PINK 
 gazzer -> BLUE 
 u1 fep -> [u1] [u1] 
 u1 zup u2 -> [u1] [u2] 
 u1 dax -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 