http://www.sec.gov/Archives/edgar/data/1574648/000104746914006604/a2221002z424b4.htm
http://www.sec.gov/Archives/edgar/data/1428336/000119312514291706/d696810d424b4.htm
http://www.sec.gov/Archives/edgar/data/1000275/000121465914005499/f731141424b2.htm
http://www.sec.gov/Archives/edgar/data/1607310/000157104914003550/t1401453-424b4.htm