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

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

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