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

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

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