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

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

*GRAMMAR*
dax -> GREEN 
 fep -> YELLOW 
 zup -> BLUE 
 tufa -> RED 
 x1 lug u1 -> [u1] [x1] [x1] 
 u1 kiki -> [u1] [u1] [u1] 
 u1 gazzer u2 -> [u1] [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 