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

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

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