For example, towing industry data for 1982 through 1991 showed that 18 percent of reported casualties were caused by equipment and material failures, 20 percent by environmental and other factors, and 62 percent by human factors.
Human factors are a major cause of towing casualties.
Data showed that nearly every towing casualty is caused by equipment failures.
The man is on a horse
Two dogs are outside.
Two men are in the woods.
The dog is brown.
A man is out with his bike.
Some men are digging a garden plot.