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

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

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