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

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

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