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

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

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