e/London Customs Convention

Information
has gloss	eng: Officially titled the Netherlands–Belgium–Luxembourg Customs Convention, the London Customs Convention was the treaty that established the Benelux Customs Union on 1944-09-05. The word "Benelux" comes from an acronym of the countries' names, Belgium, Netherlands, and Luxembourg.
lexicalization	eng: London Customs Convention
instance of	(noun) a customs union comprising Belgium and Netherlands and Luxembourg Benelux