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

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

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