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

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

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