And even someone who had never been in Haven before could have seen that the congregation here fell naturally into two groups.

But the suggested steps, they say, fall broadly into two groups.

The respondents fell into two groups, one with much more reliable service than the other.

To my mind, the documents gathered here fall into two groups.

But most Iranians, the experts say, fall into two other groups.

Members could be considered to fall roughly into three groups:

War crimes fall into three groups - or four if you include genocide.

The rest of the species fall into two destinct groups.

It seems to me that the most serious environmental problems facing past and present societies fall into a dozen groups.

These eight categories naturally fall into three groups, as shown below.