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

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

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