This text is missing some spaces, please add them: Firstnotetheinteriorangleofaregularpolygonofnsidesis(-2/n).
First note the interior angle of a regular polygon of n sides is (-2/n).
input question: Fix spacing: TaxifromFrancavillaalMaretoRomeFiumicinoPrice

output answer: Taxi from Francavilla al Mare to Rome Fiumicino Price
Problem: InFrauWenzelsbeautifulgardentheshadowshadgrownlong,soitwasquiteeasytofindashadycornerwherewecouldsettoworkwithcombsandbrushesandothergroomingequipment.
What's a sentence that uses these characters?
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In Frau Wenzels beautiful garden the shadows had grown long, so it was quite easy to find a shady corner where we could set to work with combs and brushes and other grooming equipment.
Add spaces: Researchwithlecithinandcholineasasupplementhasinsomecasesshowngoodresultsintreatingthedisease.

Answer: Research with lecithin and choline as a supplement has in some cases shown good results in treating the disease.
CommentstoTrafficTravis

Comments to Traffic Travis
Add spaces: TimetablesoftrainsfromCeskyKrumlovtoSalzburg-trainschedule

Answer:
Timetables of trains from Cesky Krumlov to Salzburg - train schedule