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

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

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