http://www.sec.gov/Archives/edgar/data/72741/000104746918000011/a2234004z424b3.htm
http://www.sec.gov/Archives/edgar/data/1527469/000119312518001140/d477295d424b5.htm
http://www.sec.gov/Archives/edgar/data/1043219/000119312518001671/d515921d424b5.htm