Thus the emergence of western rock bands in the 1980s was an unusual phenomenon.

Evidence for each process exists, but the key is that these are unusual phenomena.

In it he details a wide range of unusual phenomena.

We should have taken more time to examine the unusual phenomenon.

This is where an unusual phenomenon, rather a miracle took place in the year 1984 on 12 February.

It appears that we are in fact experiencing some sort of unusual phenomenon.

However, such institutions were considered an unusual phenomenon in western Illinois.

Advice to those who feel they might have seen an unusual phenomenon?

Economists and labor experts consider the situation an unusual phenomenon.

Robert Randolph, opening the show, is a more unusual phenomenon.