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

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

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