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

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

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