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 developed a scheme of classification known as the ladder of life?" whose answer is Taxonomy.
Each document should contain about 30 words, and these documents should contain useful information.

Query: "ladder of life" scheme development
Useful Output:

Doc 1: The Ladder of Life is a focus group tool conducted with poor women and men. It is meant to explore their understandings and interpretations
Doc 2: Public, joint or private partnership schemes like Jamshedpur's water supply scheme  ladder of life, will have a larger positive impact on
Doc 3: Furthermore, the measure of experienced well-being changed from life satisfaction in 2006 to 2009, to the Cantril Ladder of Life from 2012
Doc 4: LADDER OF LIFE: Qualitative data collection tool to understand local perceptions of poverty dynamics ; to indicate the distribution 10 years ago.
Doc 5: A five-year plan on the guidance and development of family  ladder of life. ——2016年12月12日，习近平在会见第一届全国文明家庭代表