*SUPPORT*
IN: zup zup OUT: RED RED
IN: wif kiki kiki OUT: YELLOW YELLOW YELLOW YELLOW
IN: dax dax OUT: BLUE BLUE
IN: dax dax fep wif OUT: BLUE YELLOW BLUE YELLOW YELLOW YELLOW
IN: wif gazzer kiki kiki OUT: YELLOW PURPLE YELLOW PURPLE YELLOW PURPLE YELLOW PURPLE
IN: dax zup kiki tufa gazzer OUT: PURPLE BLUE RED BLUE RED
IN: wif wif fep wif OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: dax OUT: BLUE
IN: wif zup kiki OUT: YELLOW RED YELLOW RED
IN: gazzer wif OUT: PURPLE YELLOW
IN: zup gazzer wif tufa zup tufa zup kiki OUT: RED RED RED RED PURPLE YELLOW
IN: gazzer OUT: PURPLE
IN: wif OUT: YELLOW
IN: zup zup fep dax OUT: RED BLUE RED BLUE BLUE BLUE

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

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