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

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

*GRAMMAR*
fep -> YELLOW 
 tufa -> PINK 
 gazzer -> BLUE 
 dax -> GREEN 
 x1 wif -> [x1] [x1] 
 x1 lug x2 -> [x1] [x2] 
 u1 zup u2 -> [u2] [u1] [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 