Complex sentence: About 22,000 USX employees stopped work on August 1,1986 when the United Steelworkers of America after the union and company could not agree on new employee contract terms, characterized by the company as a strike and by the union as a lockout.
Split into simpler sentences: About 22,000 USX employees stopped work on August 1,1986, after the United Steelworkers of America and the company could not agree on new employee contract terms. This was characterized by the company as a strike and by the union as a lockout.