What is the fine-grained topic of the following text: Following on from the success of the first Summit of Young Elected Local and Regional Leaders that took place in 2017, the Alliance of Liberals and Democrats for Europe in the European Committee of the Regions (ALDE-CoR) have yet again teamed up with European Liberal Youth (LYMEC) and Young Democrats for Europe (YDE) to organise a second Summit in 2018. Only return the topic.
Organization of the second Summit of Young Elected Local and Regional Leaders by ALDE-CoR, LYMEC, and YDE in 2018.