1.  In the meantime, it is useful to illustrate the essential reason why a deterministic treatment of turbulent flows is not possible.

2.  His conviction is absolute and that absolute certainty is the essential reason for any controversy about converting Jews, he said.

3.  I had been told that an essential reason for the strip search was to humiliate the newly arrived prisoner as part of his introduction to prison life.

4.  There are three essential reasons to balance the federal budget.

5.  All embassies in Bujumbura have urged their nationals to leave Burundi if they have no essential reason for staying, but no evacuation is under discussion.

6.  All embassies in Bujumbura urged their nationals to leave Burundi if they had no essential reason for staying.

7.  All the embassies here have recommended that their nationals leave Burundi if there is no essential reason for staying.

8.  All embassies in Bujumbura have urged their nationals to leave Burundi if they had no essential reason for staying, but no evacuation is planned.

9.  Although all the embassies here have recommended that their nationals leave Burundi if there is no essential reason for staying, no one was speaking of evacuation.