http://www.sec.gov/Archives/edgar/data/1053092/000089109219001823/e3999_424b2.htm
http://www.sec.gov/Archives/edgar/data/1159508/000095010319001963/dp102299_424b2-ps3112.htm
http://www.sec.gov/Archives/edgar/data/12927/000119312519036991/d605316d424b3.htm
http://www.sec.gov/Archives/edgar/data/100493/000119312519037105/d684974d424b5.htm