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

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

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