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

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

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