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

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

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