Entire Agreement; Amendment. This Agreement contains the entire agreement and understanding between the parties with respect to the subject matter hereof, and merge all prior discussions, representations, and negotiations with respect to the subject matter of this Agreement. No amendment or modification hereof shall be valid or binding upon the parties hereto unless made in writing and signed by all parties hereto. The headings of clauses contained in this Agreement preceding the text of the sections, subsections and paragraphs hereof are inserted for convenience and ease of reference only and shall not constitute any part of this Agreement, or have any effect on its interpretation or construction. Ambiguities and uncertainties in this Agreement, if any, shall not be interpreted against any party, irrespective of which party may be deemed to have caused the ambiguity or uncertainty to exist.