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

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

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