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

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

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