QUES: Is it just a nonsenseword which has lost all meaning when semites are the greatest antisemites

correct the punctuation.

CORRECTED: Is it just a nonsense-word which has lost all meaning when semites are the greatest anti-semites .

QUES: The hotel also has a bar where guests can enjoy a drink in one of the colourful armchairs

correct the punctuation.

CORRECTED: The hotel also has a bar where guests can enjoy a drink in one of the colourful armchairs.

QUES: Leveraging space instead of drawing lines helps to define different sections in a nonobtrusive manner

correct the punctuation.

CORRECTED:
Leveraging space instead of drawing lines helps to define different sections in a non-obtrusive manner.