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

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

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