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

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

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