(From https://github.com/mmichelsonIF/hearst_patterns_python)
--------------

Code in the notebook "1.open-information-extraction.ipynb"
related the Hearst patterns is reused in whole or in part
from https://github.com/mmichelsonIF/hearst_patterns_python,
which is licensed under the Apache (Software) License, 
version 2.0 ("the License"), and is subject to the following notice:


   Copyright 2016-2019 mmichelsonIF (https://github.com/mmichelsonIF)

   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.