Owners of coffee plantations in the country of jabatina grow their own coffee beans and supply them to various stores and restaurants all over the country. There are many plantation owners supplying to a huge number of companies, and they are typically unable to differentiate their products from one another. They also do not have the power to fix their own prices in the industry. In addition, these suppliers can only achieve competitive parity and not a competitive advantage. Thus, the coffee bean industry in jabatina best illustrates a(n)___ structure.