You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "which british prime minister declared war on germany?" whose answer is Neville Chamberlain.
Each document should contain about 30 words, and these documents should contain useful information.

Query: British Prime Minister at the start of World War II
Useful Output:

Doc 1: The British Prime Minister at the outbreak of World War II was: Churchill; Baldwin; Attlee; Chamberlain. Answer (Detailed Solution Below).
Doc 2: Neville Chamberlain was the Prime Minister when England declared war on Germany on the 3rd of September 1939. Winston Churchill became PM on 10
Doc 3: Sir Robert Walpole is generally considered to have been Britain's first prime minister. This is a chronologically ordered list of the prime ministers.
Doc 4: At 11:15 #OnThisDay 1939: Prime Minister Neville Chamberlain announced Britain was at war with Germany  uk/archive/world-war- two
Doc 5: The news that Britain was at war was broken by Prime Minister Neville Chamberlain at 11.15am on Sunday 3 September 1939.