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 steel and aluminum tariffs start?" whose answer is June 1, 2018.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did the steel and aluminum tariffs start
Useful Output:

Doc 1: Indeed, when Trump first imposed tariffs on steel and aluminum in 2018, prices for both metals rose some 2 percent, and imports fell by about a
Doc 2: When Do the Tariffs Start?  The tariffs go into effect for entries after 12:01 a.m. (Eastern Time) on March 12, 2025. At that time, all product
Doc 3: New 25% tariffs on imports of steel and certain steel derivatives took effect at 12:01 a.m. ET on March 12, 2025. The tariffs apply to steel
Doc 4: President Trump's sweeping tariffs on foreign steel and aluminum went into effect on Wednesday, inviting immediate retaliation from the
Doc 5: President Trump announced 25% tariffs on all steel and aluminum imports to the United States, regardless of what country they are coming