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

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

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