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

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

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