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

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

*GRAMMAR*
dax -> YELLOW 
 kiki -> PINK 
 blicket -> BLUE 
 fep -> RED 
 x1 tufa x2 -> [x2] [x1] [x2] 
 u1 zup u2 -> [u1] [u2] 
 u1 wif -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 