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

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

*GRAMMAR*
wif -> PURPLE 
 dax -> YELLOW 
 fep -> RED 
 gazzer -> BLUE 
 x1 lug x2 -> [x2] [x1] 
 u1 zup u2 -> [u1] [u2] [u2] [u2] 
 x1 tufa -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 