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

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

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