"We don't think that this was a spontaneous act because you can't make bombs like this from one day to the next," he said.

It was the first spontaneous act he had seen Simon make.

Theirs was not a spontaneous act of brutality or spite.

Defense lawyers contended the shooting was a spontaneous act by one person.

Prone to spontaneous acts of generosity, they want to make an impact on others.

The signing of the helmets, he said, was a spontaneous act.

"There were significant amounts of food purchased before the strike, which indicates this perhaps was not a spontaneous act."

As the record suggests, American industry is not known for spontaneous acts of environmental virtue.

One spontaneous act of respect at the site was curbed almost immediately.

The representation's form is a spontaneous unifying act which occurs according to the subject's conditions.