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

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

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