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

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

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