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

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

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