Input (grade 13): A businessperson (also businessman or businesswoman) is someone who is employed at usually a profit-oriented enterprise, or more specifically, someone who is involved in the management (at any level) of a company, or even an entrepreneur.
Output (grade 11): A businessperson (also businessman or businesswoman) is someone who works at an job that focuses on making money. Generally, they are someone who works in the management (at any level) of a company.