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

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

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