Case C-846/19: Judgment of the Court (Third Chamber) of 15 April 2021 (request for a preliminary ruling from the Tribunal d’arrondissement — Luxembourg) — EQ v Administration de l’Enregistrement, des Domaines et de la TVA (Reference for a preliminary ruling — Value added tax (VAT) — Directive 2006/112/EC — Economic activity — Supply of services for consideration — Article 2(1)(c) and Article 9(1) — Exemptions — Article 132(1)(g) — Supply of services closely linked to welfare and social security work — Services performed by a lawyer under powers of representation for the protection of adults lacking legal capacity — Body recognised as being devoted to social wellbeing)