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

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

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