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

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

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