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

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

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