In recent years his dances have become more abstract.

"For many, Sept. 11 has become very abstract," he said.

Like most other economics departments, Chicago has also become far more abstract.

His paintings were becoming more abstract and did not sell well.

Since 2000, his works have become more abstract and geometric with strong colors.

At the same time, much of the work produced has been creeping closer to fine art, becoming more abstract and less functional.

This new work took on a completely different turn, becoming more abstract.

His work became less abstract in his later years, often being based on the nude or images of animals.

After the war his style changed, becoming more abstract, philosophical and symbolic.

In some schools, the realities of war have become a little less abstract.