They give no evidence of social structure or higher intelligence.

For each country will have specific problems related to its own social, political and economic structure.

Learn something about the social structure before our modern times.

So what happens is we have a different social structure.

Their social structure is the same as in the book.

Nor was there much in the way of a social structure.

The 20th century brought several changes to the social structure.

This along with the civil war saw major change in the social structure.

This will cause major changes to the current economic and social structure.

But at any rate it is certain that with our present social structure we cannot win.