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

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

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