What is the relationship between 'EU' and 'European Union' in the context of the input sentence.
Options: industry, brand, platform, operator

BREXIT – HOW IT MIGHT PAN OUT Jul 1, 2015 The basic facts The United Kingdom ( UK ) government is committed to negotiating a new relationship between the UK and the European Union ( EU ), and holding an in / out referendum, before the end of 2017.
operator