Add punctuation to the following sentence: The Cathedral of Porto on the outcrop above the Ribeira square is also within walking distance as is the Torre dos Clerigos the imposing Avenida dos Aliados and the So Bento train station from where one can continue ones travels to the rest of Portugal or indeed the rest of Europe
The Cathedral of Porto, on the outcrop above the Ribeira square, is also within walking distance, as is the Torre dos Clerigos, the imposing Avenida dos Aliados, and the Sao Bento train station, from where one can continue one's travels to the rest of Portugal, or indeed the rest of Europe.