http://www.sec.gov/Archives/edgar/data/1000275/000114036117012994/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036117013032/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1415311/000119312517093506/d309732d424b3.htm
http://www.sec.gov/Archives/edgar/data/1622194/000119312517093833/d351191d424b5.htm