For trades and two-year degrees, the is rarely a university. It is a CareerTech center.
Alternatively, the user might have intended to write "ok" as in okay, but that seems unlikely. I'll assume "OK" stands for Oklahoma, and "xxx" is a placeholder for a specific city or school name. To write a long article, I'll use a generic example: "OK City" or "OK County". Or I'll treat "xxx" as a variable and explain in the article that "xxx" represents a location. For practicality, I'll write an article about top schools in Oklahoma, using the phrase "OK xxx school top" in a way that it fits naturally. But the keyword includes "xxx" literally. That would be weird. ok xxx school top