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

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

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