This theory is sharply disputed and has never been demonstrated.

He said the project would have "almost no impact on land or local wildlife," a point that environmental groups sharply dispute.

His prediction that the decision would lead to increased competition and lower prices was sharply disputed by some consumer groups.

Or, as happened on Tuesday, a scheduled hearing is postponed for reasons that are sharply disputed.

His group's methodology and conclusion have been sharply disputed.

The aviation administration said the controllers in the tower sharply disputed this account.

Frankly, the paper's demise would have been a benefit to me politically because it sharply disputed my positions for 12 years.

But not anymore, and much that surrounds the change is sharply disputed, in court and out.

The evidence about Mr. Daily's presence at the scene is the most sharply disputed.

She had good reason to be angry, the lawyer said, sharply disputing accounts suggesting that his client was dangerous.