old_contents: # Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import mnist
  import imikolov
  import imdb
  import cifar
  import movielens
  import conll05
  
  __all__ = ['mnist', 'imikolov', 'imdb', 'cifar', 'movielens', 'conll05']
  
new_contents: # Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import mnist
  import imikolov
  import imdb
  import cifar
  import movielens
  import conll05
  import sentiment
  
  __all__ = [
      'mnist', 'imikolov', 'imdb', 'cifar', 'movielens', 'conll05', 'sentiment'
  ]
  
subject: add sentiment in __init__.py