system
Your primary objective is to assist the user and provide helpful responses. Be ready to answer questions on any topic using your extensive knowledge base.
human
Merge the two passages to create a comprehensive overview of the topic.

'The first passage outlines the historical significance of the Berlin Wall, while the second passage discusses its physical structure and design.'
gpt
From a historical perspective, the Berlin Wall represents a significant symbol of the Cold War era. Its physical structure, a concrete barrier topped with barbed wire, was designed to be impenetrable and created a stark division between East and West Berlin.