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

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

*GRAMMAR*
dax -> PINK 
 wif -> BLUE 
 zup -> PURPLE 
 lug -> GREEN 
 x1 blicket x2 -> [x2] [x1] [x2] 
 u1 tufa u2 -> [u1] [u2] 
 u1 fep u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 