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

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

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