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

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

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