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

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

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