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

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

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