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

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

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