Complex sentence: The Trade in Services Agreement (TiSA) is a proposed international trade treaty between the European Union states, the United States, and 21 other countries, aimed at liberalizing the worldwide trade of services such as banking and transport.
Split into simpler sentences: The Trade in Services Agreement (TiSA) is a proposed international trade treaty between 23 Parties, including the United States and the European Union. The agreement aims at liberalizing the worldwide trade of services such as banking and transport.