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

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

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