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 new £20 notes come out?" whose answer is 2020.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did the new £20 notes come out
Useful Output:

Doc 1: The new polymer £20 notes came into circulation on 20 February 2020. Although the new notes have gradually replaced the old ones which feature
Doc 2: The new £20 note came into effect on 20th February 2020. It is said to be 'the most secure ever' banknote, which is good news for retailers
Doc 3: The new polymer £20 banknote featuring JMW Turner is due to be released on 20th of February and we've put togther a list of serial numbers
Doc 4: Although the notes that enter circulation on 5 June 2024 will feature a new portrait of the monarch, the reverse side of each note remains
Doc 5: The note will enter circulation on 20 February alongside existing paper £20 notes, which will be phased out. The front of the new £20 banknote.