Datasets:
break_data

	"""TODO(break_data): Add a description here."""

	from __future__ import absolute_import, division, print_function

	import csv
	import json
	import os
	import textwrap

	import six

	import datasets


	# TODO(break): BibTeX citation
	_CITATION = """\
	@article{Wolfson2020Break,
	title={Break It Down: A Question Understanding Benchmark},
	author={Wolfson, Tomer and Geva, Mor and Gupta, Ankit and Gardner, Matt and Goldberg, Yoav and Deutch, Daniel and Berant, Jonathan},
	journal={Transactions of the Association for Computational Linguistics},
	year={2020},
	}
	"""

	# TODO(break):
	_DESCRIPTION = """\
	Break is a human annotated dataset of natural language questions and their Question Decomposition Meaning Representations
	(QDMRs). Break consists of 83,978 examples sampled from 10 question answering datasets over text, images and databases.
	This repository contains the Break dataset along with information on the exact data format.
	"""
	_URL = "https://github.com/allenai/Break/raw/master/break_dataset/Break-dataset.zip"


	class BreakDataConfig(datasets.BuilderConfig):

	"""BuilderConfig for Break"""

	def __init__(self, text_features, lexicon_tokens, **kwargs):
	"""

	Args:
	text_features: `dict[string, string]`, map from the name of the feature
	dict for each text field to the name of the column in the tsv file
	lexicon_tokens: to define if we want to load the lexicon_tokens files or not
	**kwargs: keyword arguments forwarded to super.
	"""
	super(BreakDataConfig, self).__init__(version=datasets.Version("1.0.0", ""), **kwargs)
	self.text_features = text_features
	self.lexicon_tokens = lexicon_tokens


	class BreakData(datasets.GeneratorBasedBuilder):
	"""TODO(break_data): Short description of my dataset."""

	# TODO(break_data): Set up version.
	VERSION = datasets.Version("0.1.0")
	BUILDER_CONFIGS = [
	BreakDataConfig(
	name="QDMR-high-level",
	description=textwrap.dedent(
	"""
	Contains questions annotated with the high-level variant of QDMR. These decomposition are exclusive to Reading
	Comprehension tasks (Section 2). lexicon_tokens files are also provided."""
	),
	text_features={
	"question_id": "question_id",
	"question_text": "question_text",
	"decomposition": "decomposition",
	"operators": "operators",
	"split": "split",
	},
	lexicon_tokens=False,
	),
	BreakDataConfig(
	name="QDMR-high-level-lexicon",
	description=textwrap.dedent(
	"""
	Contains questions annotated with the high-level variant of QDMR. These decomposition are exclusive to Reading
	Comprehension tasks (Section 2). lexicon_tokens files are also provided."""
	),
	text_features={
	"source": "source",
	"allowed_tokens": "allowed_tokens",
	},
	lexicon_tokens=True,
	),
	BreakDataConfig(
	name="QDMR",
	description=textwrap.dedent(
	"""
	Contains questions over text, images and databases annotated with their Question Decomposition Meaning
	Representation. In addition to the train, dev and (hidden) test sets we provide lexicon_tokens files. For
	each question, the lexicon file contains the set of valid tokens that could potentially appear in its
	decomposition """
	),
	text_features={
	"question_id": "question_id",
	"question_text": "question_text",
	"decomposition": "decomposition",
	"operators": "operators",
	"split": "split",
	},
	lexicon_tokens=False,
	),
	BreakDataConfig(
	name="QDMR-lexicon",
	description=textwrap.dedent(
	"""
	Contains questions over text, images and databases annotated with their Question Decomposition Meaning
	Representation. In addition to the train, dev and (hidden) test sets we provide lexicon_tokens files. For
	each question, the lexicon file contains the set of valid tokens that could potentially appear in its
	decomposition """
	),
	text_features={
	"source": "source",
	"allowed_tokens": "allowed_tokens",
	},
	lexicon_tokens=True,
	),
	BreakDataConfig(
	name="logical-forms",
	description=textwrap.dedent(
	"""
	Contains questions and QDMRs annotated with full logical-forms of QDMR operators + arguments. Full logical-forms
	were inferred by the annotation-consistency algorithm described in """
	),
	lexicon_tokens=False,
	text_features={
	"question_id": "question_id",
	"question_text": "question_text",
	"decomposition": "decomposition",
	"operators": "operators",
	"split": "split",
	"program": "program",
	},
	),
	]

	def _info(self):
	# TODO(break_data): Specifies the datasets.DatasetInfo object
	features = {text_feature: datasets.Value("string") for text_feature in six.iterkeys(self.config.text_features)}
	return datasets.DatasetInfo(
	# This is the description that will appear on the datasets page.
	description=_DESCRIPTION,
	# datasets.features.FeatureConnectors
	features=datasets.Features(
	features
	# These are the features of your dataset like images, labels ...
	),
	# If there's a common (input, target) tuple from the features,
	# specify them here. They'll be used if as_supervised=True in
	# builder.as_dataset.
	supervised_keys=None,
	# Homepage of the dataset for documentation
	homepage="https://github.com/allenai/Break",
	citation=_CITATION,
	)
	# if

	def _split_generators(self, dl_manager):
	"""Returns SplitGenerators."""
	# TODO(break_data): Downloads the data and defines the splits
	# dl_manager is a datasets.download.DownloadManager that can be used to
	# download and extract URLs
	dl_dir = dl_manager.download_and_extract(_URL)
	data_dir = os.path.join(dl_dir, "Break-dataset")
	qdmr_high_level = os.path.join(data_dir, "QDMR-high-level")
	qdmr = os.path.join(data_dir, "QDMR")
	logical = os.path.join(data_dir, "logical-forms")
	if self.config.name == "QDMR" or self.config.name == "QDMR-lexicon":
	return [
	datasets.SplitGenerator(
	name=datasets.Split.TRAIN,
	# These kwargs will be passed to _generate_examples
	gen_kwargs={
	"filepath": os.path.join(qdmr, "train.csv")
	if not self.config.lexicon_tokens
	else os.path.join(qdmr, "train_lexicon_tokens.json")
	},
	),
	datasets.SplitGenerator(
	name=datasets.Split.VALIDATION,
	# These kwargs will be passed to _generate_examples
	gen_kwargs={
	"filepath": os.path.join(qdmr, "dev.csv")
	if not self.config.lexicon_tokens
	else os.path.join(qdmr, "dev_lexicon_tokens.json")
	},
	),
	datasets.SplitGenerator(
	name=datasets.Split.TEST,
	# These kwargs will be passed to _generate_examples
	gen_kwargs={
	"filepath": os.path.join(qdmr, "test.csv")
	if not self.config.lexicon_tokens
	else os.path.join(qdmr, "test_lexicon_tokens.json")
	},
	),
	]
	elif self.config.name == "QDMR-high-level" or self.config.name == "QDMR-high-level-lexicon":
	return [
	datasets.SplitGenerator(
	name=datasets.Split.TRAIN,
	# These kwargs will be passed to _generate_examples
	gen_kwargs={
	"filepath": os.path.join(qdmr_high_level, "train.csv")
	if not self.config.lexicon_tokens
	else os.path.join(qdmr_high_level, "train_lexicon_tokens.json")
	},
	),
	datasets.SplitGenerator(
	name=datasets.Split.VALIDATION,
	# These kwargs will be passed to _generate_examples
	gen_kwargs={
	"filepath": os.path.join(qdmr_high_level, "dev.csv")
	if not self.config.lexicon_tokens
	else os.path.join(qdmr_high_level, "dev_lexicon_tokens.json")
	},
	),
	datasets.SplitGenerator(
	name=datasets.Split.TEST,
	# These kwargs will be passed to _generate_examples
	gen_kwargs={
	"filepath": os.path.join(qdmr_high_level, "test.csv")
	if not self.config.lexicon_tokens
	else os.path.join(qdmr_high_level, "test_lexicon_tokens.json")
	},
	),
	]
	elif self.config.name == "logical-forms":
	return [
	datasets.SplitGenerator(
	name=datasets.Split.TRAIN,
	# These kwargs will be passed to _generate_examples
	gen_kwargs={"filepath": os.path.join(logical, "train.csv")},
	),
	datasets.SplitGenerator(
	name=datasets.Split.VALIDATION,
	# These kwargs will be passed to _generate_examples
	gen_kwargs={"filepath": os.path.join(logical, "dev.csv")},
	),
	datasets.SplitGenerator(
	name=datasets.Split.TEST,
	# These kwargs will be passed to _generate_examples
	gen_kwargs={"filepath": os.path.join(logical, "test.csv")},
	),
	]

	def _generate_examples(self, filepath):
	"""Yields examples."""
	# TODO(break_data): Yields (key, example) tuples from the dataset
	with open(filepath, encoding="utf-8") as f:
	if (
	self.config.name == "QDMR-high-level"
	or self.config.name == "QDMR"
	or self.config.name == "logical-forms"
	):
	data = csv.DictReader(f)
	for id_, row in enumerate(data):
	yield id_, row
	elif self.config.name == "QDMR-high-level-lexicon" or self.config.name == "QDMR-lexicon":
	for id_, row in enumerate(f):
	data = json.loads(row)
	yield id_, data