input question: Fix spacing: Columbine'sfatherwhowantshertomarrywell.

output answer: Columbine's father who wants her to marry well.
Problem: Discoveryandstudyofradioactivityduringthepastcenturyhasprovedthattherehasbeennopasteternityofmatter!Radioactivityisdescribedasaprocessofdisintegration.
What's a sentence that uses these characters?
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Discovery and study of radioactivity during the past century has proved that there has been no past eternity of matter! Radioactivity is described as a process of disintegration.
Add spaces: Death/injuryinaccidents,limiting.

Answer: Death/injury in accidents, limiting.
[Hausdorff's]broadapproach,hisaestheticfeeling,andhissenseofbalancemayhaveplayedasubstantialpart.

[Hausdorff's] broad approach, his aesthetic feeling, and his sense of balance may have played a substantial part.
[Q]: [SimpleStyleBlackFreshwaterPearlEarringswithMetalAccessories]
[A]: [Simple Style Black Freshwater Pearl Earrings with Metal Accessories]
Problem: Add spaces: aitagent.exemissing/notfounderror:UnavoidablyPCmaygetinfectedbyviruslikeTrojan:Win32/Agent.NorcontrolledbymalwarelikeWindows7SystemTweak.AftertheyareremovedbyantivirussuchasZoneAlarm?Antivirus+Firewall2012,theinfectedfileaitagent.exewouldbedeletedaswellsothatmissingproblemisfound.

Spaces added:
aitagent.exe missing / not found error: Unavoidably PC may get infected by virus like Trojan:Win32/Agent.N or controlled by malware like Windows 7 SystemTweak. After they are removed by antivirus such as ZoneAlarm? Antivirus + Firewall 2012, the infected file aitagent.exe would be deleted as well so that missing problem is found.