Original sentence: GMT the United Kingdom completes its separation from the European Union with the ending of the transition period.The UK ended the dynamic incorporation of future EU law, including most future judgments of the European Court of Justice, into UK law
Edited sentence: GMT the United Kingdom completes its separation from the European Union with the ending of the transition period which saw the UK withdrawing from following all the rules and institutions of the European Union, including the European Single Market, the European Union Customs Union, the Common Agricultural Policy and the Common Fisheries Policy, and ended the dynamic incorporation of future EU law, including most future judgments of the European Court of Justice, into UK law