input question: Fix spacing: ThisOSwassuccessorofWindowsXP.TheOShasmanyuniquefeaturesandevennowthisoperatingsystemisusedbythousandsofusersworldwide.

output answer: This OS was successor of Windows XP. The OS has many unique features and even now this operating system is used by thousands of users worldwide.
Problem: Runningthisbackfurther,onefindsthattherealThirdParty,eventuallyunearthed,gotpeopleshotbyfalsereports.
What's a sentence that uses these characters?
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Running this back further, one finds that the real Third Party, eventually unearthed, got people shot by false reports.
Add spaces: TheLEGO®️TraintakesyouonacharmingtourofLEGOLAND®️thatwilldelightyourwholefamily.

Answer: The LEGO®️ Train takes you on a charming tour of LEGOLAND®️ that will delight your whole family.
Designerapartmentwithfreeinternetand2bedroomsinEixamp...

Designer apartment with free internet and 2 bedrooms in Eixamp...
[Q]: [ThetwoscientistsSvenErikJrgensenandSrenNorsNielsenaredoingthescientificprojectincooperationwiththeEnergyAcademy.TheprojectissupportedbytheVillumFund.ContactSrenNorsNielsenformoreinformation:soerennorsnielsen@gmail.com]
[A]: [The two scientists Sven Erik Jrgensen and Sren Nors Nielsen are doing the scientific project in cooperation with the Energy Academy. The project is supported by the Villum Fund. Contact Sren Nors Nielsen for more information: soerennorsnielsen@gmail.com]
Problem: Add spaces: Enjoyspacioussuitesfurnishedwithmodernamenitiesandallthecomfortsofhome,includingfullkitchens,atthisall-suitehotel,locatedonlyminutesfromdowntownHoustonattractionsand...

Spaces added:
Enjoy spacious suites furnished with modern amenities and all the comforts of home, including full kitchens, at this all-suite hotel, located only minutes from downtown Houston attractions and ...