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

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

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