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

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

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