For the first five, they would rotate the leadership, while the last three were to be a group effort.

The 1979 project was a group effort, with songs being written and sung by the various members.

But it should be like a group effort out there.

But if you want to develop your talents further, get involved in a group effort.

The dramatic improvement, he said, has been the result of a group effort.

In those days optical design was very much a group effort.

"There is something of a group effort to protect mom," he said.

They do this through a group effort to make the village seem like the doctor's personal idea of paradise.

It needed a group effort, working on the physical action inside the object itself.

In my opinion, it has been a productive group effort.