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

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

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