ConstantBead       : Stores the URL
     |
     V 
    HTMLRetriverBead   : Retrived the value from the input 
     |                 : bead and returns the text of the
     |                 : HTML page that it refers to
     V
    LineMatcherBead    : Given a multiline text document,
     |                 : return all lines that match a given
     |                 : pattern
     V
    TokerizerBead      : Given a line, returns text that 
     |                 : matches a given pattern
     V
    OutputBead         : Prints input text to screen.