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

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

*GRAMMAR*
dax -> BLUE 
 lug -> YELLOW 
 wif -> RED 
 tufa -> PURPLE 
 u1 fep x1 -> [u1] [x1] 
 x1 blicket x2 -> [x1] [x2] 
 u1 gazzer x1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 