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

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

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