Problem: Add spaces: Mitochondriaarecellularorganellesresponsibleforproviding90%oftheenergythatcellsneedfornormalfunction1.

Spaces added: Mitochondria are cellular organelles responsible for providing 90% of the energy that cells need for normal function1.
This text is missing some spaces, please add them: At13yearsold,whilestillinschool,helearnedabouttherestaurantbusinessandtheconceptofservice,ashestartedworkingatafishrestaurant.
At 13 years old, while still in school, he learned about the restaurant business and the concept of service, as he started working at a fish restaurant.
input question: Fix spacing: Mainchanges:extensionofEuropeanintegrationtoincludegeneraleconomiccooperation.

output answer: Main changes: extension of European integration to include general economic cooperation.
Problem: Regardingergotrainers,theperformanceisdisplayedinwattaccordingtothenational/EuropeannormDINEN957-1/5.Ergometerscanthusbeusedfortherapy.
What's a sentence that uses these characters?
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Regarding ergotrainers, the performance is displayed in watt according to the national/European norm DIN EN 957-1/5. Ergometers can thus be used for therapy.
Add spaces: RadioFlyerServicesareoperatedintheUnitedStatesbutareavailabletocertaininternationalusers.IfyouuseRadioFlyerServicesorcontactusonlinefromoutsidetheUnitedStates,yourinformationwillbeprocessedandstoredintheUnitedStateswheredataprotectionandprivacyregulationsmaynotofferthesameprotectionasthecountryinwhichyoulive.IfyouusetheRadioFlyerServicesorprovideinformationtous,youconsenttothecollection,transferanduseofyourinformationinaccordancewithU.S.privacylawsandwiththisPrivacyPolicy.

Answer: Radio Flyer Services are operated in the United States but are available to certain international users. If you use Radio Flyer Services or contact us online from outside the United States, your information will be processed and stored in the United States where data protection and privacy regulations may not offer the same protection as the country in which you live. If you use the Radio Flyer Services or provide information to us, you consent to the collection, transfer and use of your information in accordance with U.S. privacy laws and with this Privacy Policy.
This text is missing some spaces, please add them: 2:16Soithappened,whenallthemenofwarwereconsumedanddeadfromamongthepeople,
2:16 So it happened, when all the men of war were consumed and dead from among the people,