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

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

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