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 drinking age in md change to 21?" whose answer is 1982.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did the drinking age in md change to 21
Useful Output:

Doc 1: 28, 1982 -- A bill to raise the state's legal drinking age to 21 won swift and unanimous approval today from a key House committee, sending one
Doc 2: When did DC raise the drinking age to 21? The story goes back to 1984 with Ronald Reagan, the National Minimum Drinking Age Act,
Doc 3: Since 1984, the national minimum legal drinking age has been 21. Before 1984, each state had its own legal drinking age. States that don't
Doc 4: In Idaho, you could drink beer at 20, but had to be 21 for wine and liquor. On June 30, 1972, the age for all alcohol consumption was lowered to
Doc 5: The state's drinking age rose to 21 on July 1, 1982, seven months before his 18th birthday.