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

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

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