1. A method to generate a deep parsable document, the method comprising: identifying, by one or more processors, one or more character errors in a document; replacing, by the one or more processors, a character having the identified one or more character errors with a replacement character, wherein replacing the character error with the replacement character allows deep parsing of the document to complete; and applying, by the one or more processors, to the document one or both of a deep parsing and natural language processing after the replacing.