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

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

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