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: "when was article 21a (right to education) inserted in part of the constitution?" whose answer is 4 August 2009.
Each document should contain about 30 words, and these documents should contain useful information.

Query: insertion of article 21a in indian constitution
Useful Output:

Doc 1: Article 21A of the Indian Constitution explains the necessity of free and mandatory education for children aged 6 to 14 in India. With the
Doc 2: The Constitution (Eighty-sixth Amendment) Act, 2002 inserted Article 21-A in the Constitution of India to provide free and compulsory
Doc 3: The Constitution (eighty-sixth Amendment Act 2002) inserted Article 21-A in the Constitution of India to provide free and and compulsory
Doc 4: 2002, 86th Constitutional Amendment took place and insertion of Article 21A and brings changes in Article 45 and also added a new
Doc 5: The Constitution (Eighty-sixth Amendment) Act, 2002 inserted Article 21A in the Constitution of India. Its aim is to provide free and