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

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

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