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

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

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