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 recipient of bharat ratna to be awarded posthumously?" whose answer is Prime Minister Lal Bahadur Shastri.
Each document should contain about 30 words, and these documents should contain useful information.

Query: first posthumous Bharat Ratna recipient
Useful Output:

Doc 1: Since then, the award has been bestowed upon 53 individuals, including 18 who were awarded posthumously. The original statutes did not provide for posthumous
Doc 2: Award recipients: 1954 to 2019 ; Rajendra Prasad, 1962, Rajendra Prasad (born December 3, 1884, Zeradei, India—died February 28, 1963, Patna) was
Doc 3: The Bharat Ratna, India's highest civilian award, was established on January 2, 1954, by Dr. Rajendra Prasad, the nation's first President.
Doc 4: The Bharat Ratna is the highest civilian award of the Republic of India. The award was instituted on 2 January 1954. The first recipients of
Doc 5: The first posthumous recipient of the Bharat Ratna award was former prime minister Lal Bahadur Shastri, who was a social activist. 4. when was