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

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

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