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

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

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