(a) The provisions of this article shall be applicable only to contracts and agreements between or among: (1) Employers and employees; (2) Distributors and manufacturers; (3) Lessors and lessees; (4) Partnerships and partners; (5) Franchisors and franchisees; (6) Sellers and purchasers of a business or commercial enterprise; and (7) Two or more employers. (b) The provisions of this article shall not apply to any contract or agreement not described in subsection (a) of this Code section.