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

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

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