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

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

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