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

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

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