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

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

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