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

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

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