input question: Fix spacing: Shesingstworevolutionarysongs,andthenshesingsoneofthenationaltraditionalsongs.

output answer: She sings two revolutionary songs, and then she sings one of the national traditional songs.

input question: Fix spacing: TherearestillprobablymoreunknownSpanishwords,butI'mmuchbetterabletomakeeducated,contextual(andcommonstem-related)guessesthanIwaspreviously.

output answer: There are still probably more unknown Spanish words, but I'm much better able to make educated, contextual (and common stem-related) guesses than I was previously.

input question: Fix spacing: HislaterassociationswiththeNazisisstillamatterofconsiderablecontroversyamonghistorians.

output answer: His later associations with the Nazis is still a matter of considerable controversy among historians.

input question: Fix spacing: Saturday10February,201861822156requestssinceTuesday16December,2003

output answer:
Saturday 10 February, 2018 61822156 requests since Tuesday 16 December, 2003