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

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

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