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

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

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