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

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

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