Abstract: Methods and systems for creating a knowledge graph that relates terms in a corpus of literature in the form of an assertion and provides a probability of the veracity of the assertion are disclosed herein. Various aspects of the invention are directed to and/or involve knowledge graphs and structured digital abstracts (SDAs) offering a machine readable representation of statements in a corpus of literature. Various methods and systems of the invention can automatically extract, structure, and visualize the statements. Such graphs and abstracts can be useful for a variety of applications including, but not necessarily limited to, semantic-based search tools for search of electronic medical records, specific content verticals (e.g. newswire, finance, history) and general internet searches.