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

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

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