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

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

*GRAMMAR*
dax -> GREEN 
 kiki -> YELLOW 
 gazzer -> RED 
 tufa -> BLUE 
 x1 zup -> [x1] [x1] [x1] 
 x1 wif -> [x1] [x1] [x1] 
 x1 lug x2 -> [x1] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 