*SUPPORT*
IN: dax gazzer dax OUT: BLUE BLUE
IN: fep fep gazzer dax OUT: RED RED BLUE
IN: dax gazzer dax tufa OUT: BLUE BLUE BLUE BLUE
IN: dax tufa OUT: BLUE BLUE
IN: zup gazzer dax OUT: PINK BLUE
IN: zup wif OUT: PINK PINK PINK
IN: zup dax gazzer dax OUT: PINK BLUE BLUE
IN: fep fep gazzer dax tufa OUT: RED RED BLUE RED RED BLUE
IN: zup OUT: PINK
IN: fep fep wif OUT: RED RED RED RED RED RED
IN: fep gazzer dax OUT: RED BLUE
IN: dax gazzer zup OUT: BLUE PINK
IN: zup gazzer lug tufa OUT: PINK GREEN PINK GREEN
IN: fep lug gazzer fep OUT: RED GREEN RED

*QUERY*
IN: fep gazzer zup tufa OUT: RED PINK RED PINK
IN: lug OUT: GREEN
IN: dax zup wif OUT: BLUE PINK BLUE PINK BLUE PINK
IN: lug gazzer fep OUT: GREEN RED
IN: fep gazzer dax tufa OUT: RED BLUE RED BLUE
IN: lug zup wif OUT: GREEN PINK GREEN PINK GREEN PINK
IN: lug zup dax gazzer zup OUT: GREEN PINK BLUE PINK
IN: zup gazzer zup OUT: PINK PINK
IN: lug gazzer zup wif OUT: GREEN PINK GREEN PINK GREEN PINK
IN: dax OUT: BLUE

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