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

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

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