QUESTION: Fix punctuation: When Reidemeister was appointed as associate professor of geometry at the University of Vienna in 1923 he became a colleague of Wirtinger
ANS: When Reidemeister was appointed as associate professor of geometry at the University of Vienna in 1923 he became a colleague of Wirtinger.

QUESTION: Fix punctuation: By Sortiarius November 4 2016
ANS: By Sortiarius, November 4, 2016

QUESTION: Fix punctuation: after chring has been turned
ANS: = after ch-ring has been turned

QUESTION: Fix punctuation: Price from 60 00 per person per night
ANS:
Price from 60 .00 per person per night