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

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

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