Created by: xuzhenglei1991

Failed to download conll05 dataset. After checking paddle source code, I find that the url given in the source codes are failed to open. The detail source codes are as follows：

dir：/usr/local/lib/python2.7/dist-packages/paddle/dataset/conll05.py

DATA_URL = 'http://www.cs.upc.edu/~srlconll/conll05st-tests.tar.gz' DATA_MD5 = '387719152ae52d60422c016e92a742fc' WORDDICT_URL = 'http://paddlepaddle.bj.bcebos.com/demo/srl_dict_and_embedding/wordDict.txt' WORDDICT_MD5 = 'ea7fb7d4c75cc6254716f0177a506baa' VERBDICT_URL = 'http://paddlepaddle.bj.bcebos.com/demo/srl_dict_and_embedding/verbDict.txt' VERBDICT_MD5 = '0d2977293bbb6cbefab5b0f97db1e77c' TRGDICT_URL = 'http://paddlepaddle.bj.bcebos.com/demo/srl_dict_and_embedding/targetDict.txt' TRGDICT_MD5 = 'd8c7f03ceb5fc2e5a0fa7503a4353751' EMB_URL = 'http://paddlepaddle.bj.bcebos.com/demo/srl_dict_and_embedding/emb' EMB_MD5 = 'bf436eb0faa1f6f9103017f8be57cdb7'