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

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

*GRAMMAR*
gazzer -> YELLOW 
 kiki -> RED 
 dax -> GREEN 
 zup -> BLUE 
 x1 tufa -> [x1] [x1] [x1] [x1] 
 u1 lug u2 -> [u2] [u1] [u2] [u1] 
 x1 wif -> [x1] [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 