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

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

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