“Subsidiary” means any corporation (other than the Company) in an unbroken chain of corporations beginning with the Company if each of the corporations (other than the last corporation in the unbroken chain) owns stock possessing fifty percent (50%) or more of the combined voting power of all classes of stock in one (1) of the other corporations in the chain or fifty percent (50%) or more of the ownership interests in one (1) of the other corporations in the chain.