Case C-499/14: Judgment of the Court (First Chamber) of 10 March 2016 (request for a preliminary ruling from the Hof van Cassatie — Belgium) — VAD BVBA, Johannes Josephus Maria van Aert v Belgische Staat (Reference for a preliminary ruling — Customs Union and Common Customs Tariff — Tariff classification — Combined Nomenclature — Interpretation — General Rules — Rule 3(b) — Definition of ‘goods put up in sets for retail sale’ — Separate packages)