*SUPPORT*
IN: dax dax blicket dax dax OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: lug blicket gazzer tufa OUT: PURPLE PINK PINK PINK PINK
IN: dax dax wif dax OUT: BLUE BLUE BLUE
IN: fep blicket fep tufa wif fep OUT: RED RED RED RED RED RED RED
IN: gazzer gazzer OUT: PINK PINK
IN: fep blicket dax OUT: RED BLUE BLUE
IN: lug gazzer tufa OUT: PURPLE PINK PINK
IN: lug tufa OUT: PURPLE PURPLE
IN: gazzer tufa OUT: PINK PINK
IN: dax wif dax OUT: BLUE BLUE
IN: gazzer fep tufa wif dax OUT: BLUE PINK RED RED
IN: dax wif lug OUT: PURPLE BLUE
IN: lug fep tufa OUT: PURPLE RED RED
IN: gazzer blicket dax tufa OUT: PINK BLUE BLUE BLUE BLUE

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

*GRAMMAR*
lug -> PURPLE 
 fep -> RED 
 dax -> BLUE 
 gazzer -> PINK 
 u1 blicket x1 -> [u1] [x1] [x1] 
 u1 tufa -> [u1] [u1] 
 x1 wif u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 