What is the version of the following sentence with correct punctuation?

The Danish UNESCO schools have worked with that topic for a number of years under the heading of Breaking the Silence During the seminar I couldnt help noticing that it was the representatives of the American continent for whom the topic was the most sensitive whereas the European and the African delegates can speak more objectively and without prejudice about the sins of the past
The Danish UNESCO schools have worked with that topic for a number of years under the heading of Breaking the Silence. During the seminar I couldn't help noticing that it was the representatives of the American continent for whom the topic was the most sensitive, whereas the European and the African delegates can speak more objectively and without prejudice about the sins of the past.