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: "how many costas are there in the uk?" whose answer is 2,121.
Each document should contain about 30 words, and these documents should contain useful information.

Query: costas in the uk
Useful Output:

Doc 1: Costa Coffee has been voted 'The Nation's Favourite' coffee shop for the 15th year in a row, based on the votes of over 5,000 UK coffee
Doc 2: CHELMSFORD has been crowned the Costa capital of the UK after there are now 25 outlets within two miles of the city centre, the Sun can reveal.
Doc 3: It's this ubiquity that has allowed Costa to become one of the most prolific coffee chains in Britain. There are 2,121 Costas across the UK
Doc 4: Costa Coffee has been at the forefront of keeping the British public caffeinated during another turbulent 12 months for the retail sector,
Doc 5: Costa has branches in Europe, Africa, Asia, and the Middle East — here's a map showing where they all are. costa coffee branches map.