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

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

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