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

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

*GRAMMAR*
zup -> BLUE 
 dax -> YELLOW 
 kiki -> GREEN 
 gazzer -> PURPLE 
 x1 wif x2 -> [x2] [x1] [x2] 
 x1 lug -> [x1] [x1] 
 u1 tufa u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 