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

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

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