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

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

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