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

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

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