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

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

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