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

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

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