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

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

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