input question: Fix spacing: Youcanselectthemostsuitablepaymentmethod:PayPal,creditcard,check,banktransferetc.

output answer: You can select the most suitable payment method: PayPal, credit card, check, bank transfer etc.
Problem: "Anexampleofhowsimpleandmeaningfulagloomytopiccanbeconveyed,soitappearsbeautifulandfragile.
What's a sentence that uses these characters?
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"An example of how simple and meaningful a gloomy topic can be conveyed, so it appears beautiful and fragile.
Add spaces: bluenaturetravelorganizesahired-cartriptailoredtoyoursurfandtraveldesires.

Answer: blue nature travel organizes a hired-car trip tailored to your surf and travel desires.
Frontwall:detachableandcanbefoldeddownintoaveranda,windowscanbeclosedbyflapswithzips.

Front wall: detachable and can be folded down into a veranda, windows can be closed by flaps with zips.
[Q]: [solutionoftheCroatianInstituteforPensionInsurance.]
[A]: [ solution of the Croatian Institute for Pension Insurance.]
Problem: Add spaces: FrederickIVboughtthemarblefigureonhistriptoItalyin1709.

Spaces added:
Frederick IV bought the marble figure on his trip to Italy in 1709.