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: "who was the first indian whose official residence was rashtrapati bhavan?" whose answer is Chakravarti Rajagopalachari.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when was rashtrapati bhavan made the official residence of the president of india
Useful Output:

Doc 1: The construction of the Rashtrapati Bhavan, which is the official residence of the President of India, began in 1912 and was completed in 1929.
Doc 2: 'Presidential Palace'; formerly Viceroy's House (1931–1947) and Government House (1947–1950)) is the official residence of the President of the Republic of
Doc 3: Rashtrapati Bhavan is the official residence of the President of India. Find out the history, visiting time, and lesser known facts about the President House
Doc 4: Rashtrapati Bhawan · Architect · Commissioned, 1912 · Constructed, 1929 · Opened, 1931 · Converted, 1952
Doc 5: Rashtrapati Bhavan is now the official residence of the President of India, located at the Western end of Rajpath. It was formerly the Viceroy's House and