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

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

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