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

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

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