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

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

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