Case C-406/20: Judgment of the Court (Seventh Chamber) of 9 September 2021 (request for a preliminary ruling from the Finanzgericht Köln — Germany) — Phantasialand v Finanzamt Brühl (Reference for a preliminary ruling — Taxation — Value added tax (VAT) — Directive 2006/112/EC — Article 98 — Option for the Member States to apply a reduced rate of VAT to certain supplies of goods and services — Annex III, point 7 — Admission fee for amusement parks and fairs — Principle of fiscal neutrality — Services provided by static and mobile fairground entertainers — Comparability — Context — Point of view of the average consumer — Expert opinion)