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#!/bin/bash

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# The MIT License (MIT)
# Copyright (c) 2017 Thomas Hütter, Mateusz Pawlik.
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
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# Download the data files.
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wget https://nlp.stanford.edu/sentiment/trainDevTestTrees_PTB.zip

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# Extract the data into subdirectory.
unzip trainDevTestTrees_PTB.zip -d original_data
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# Prepare output from 'dev.txt' and 'train.txt':
# - convert dev.txt and train.txt into UTF-8 format
# - replace ( by {
# - replace ) by }
# - remove whitespace before '{'
# - sort by number of nodes (equivalent to number of "{")
iconv -f ISO-8859-1 -t "UTF-8" original_data/trees/dev.txt original_data/trees/train.txt | \
sed -e 's/(/{/g' | sed -e 's/)/}/g' | sed -E 's/[[:space:]]([{])/\1/g' | \
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../utilities/sort_dataset.sh > sentiment_sorted.bracket
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# Tidy up.
rm trainDevTestTrees_PTB.zip
rm -rf original_data