It was the beginning of a collaboration that continues to this day.

This was the beginning of a lifelong collaboration.

It was the beginning of a collaboration that resulted in several subsequent recordings.

They had three daughters together, and their marriage marked the beginning of a 48-year collaboration on many projects.

That was the beginning of a collaboration that lasted for the next 12 films, which they made together in 30 years.

Grateful readers can only hope that this represents the beginning of a long and fruitful collaboration.

It was the beginning of a writing collaboration that has spanned more than two decades.

It was also the beginning of a rich and influential collaboration in the field of communication studies.

It was the beginning of a collaboration that revealed surprising similarities in outlooks.

Also, it marked the marked the beginning of a beautiful musical collaboration and friendship.