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

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

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