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

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

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