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

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

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