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 did the 16th amendment to the constitution legalize the levying of income tax by congress?" whose answer is February 3, 1913.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when was the 16th amendment to the constitution ratified
Useful Output:

Doc 1: This article examines the reasoning and analysis in Brushaber concerning the function of the 16th Amendment.
Doc 2: It was ratified in 1913. The full text of the Amendment is: The Congress shall have power to lay and
Doc 3: February 3, 1913 was the day that the 16th Amendment to the Constitution was ratified.
Doc 4: Today we celebrate a constitutional ratification twofer: the 15th Amendment (ratified  16th Amendment (ratified February 3, 1913). Here's what
Doc 5: Ratified on February 3, 1913, the Sixteenth Amendment formed a foundational component of the U.S. tax system and led to a significant expansion of the federal