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

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

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