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

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

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