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 the k-12 implemented in the philippines?" whose answer is 2011.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when was the k-12 program implemented in the philippines
Useful Output:

Doc 1: 10533 passed in 2013, which established the K-12 program that added Grades 11 and 12 as the senior high school stage of the 13-year enhanced
Doc 2: Cruz, I. (2010). Reasons why we should support K to 12 Basic Education Program in the Philippine Basic Education Curriculum. Retrieved from http
Doc 3: THE K to 12 program was initially seen as a catch-up move by the Department of Education. Fully 99 percent of the countries in the world
Doc 4: The implementation of the enhanced curriculum for Grades 1-7 started in the school year 2012-2013 and the curriculum for Grades 11-12 finished
Doc 5: In School Year 2012-2013, the enhanced curriculum for K to 12 was implemented. In 2013, K to 12 was enacted into law known as RA 10533. SHS