The people in all of these examples use attention volitionally

It has been repeatedly shown that enzyme-derived ODN-based assays can detect as little as 50 zeptomoles of target DNA corresponding to about 25,000 molecules.

HOPES guilty, FORTUNES crackt, and th’ ILLS y’ave done.

Brook asked the actors to find a way of communicating the idea of this picture to a blind Chineseman.