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JSON is a lightweight data-interchange format that is widely used to exchange data on the web and to store data in databases.
Many applications use JSON together with XML and HTML.
This document is governed by the 1 March 2017 W3C Process Document. It was developed by the W3C XML Query Working Group, which is part of the XML Activity.
] This document specifies a grammar for XQuery 3.1, using the same basic EBNF notation used in [XML 1.0].
Unless otherwise noted (see A.2 Lexical structure), whitespace is not significant in .
It is also flexible enough to query a broad spectrum of XML information sources, including both databases and documents.
The Query Working Group has identified a requirement for both a non-XML query syntax and an XML-based query syntax.