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

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

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