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

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

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