13 The construction I adopt is consistent with the commercial purpose sought to be achieved by the parties through the Franchise Agreement. The parties sought to deal with the conduct of a business. Neither was dealing with the sale of land. Blockbuster is a Franchisor of a business and not an investor in real estate. Bytan sought to acquire the right to conduct a franchise business from a Site and not to sell, or to give an option to sell, its real estate. Neither the Franchise Agreement nor any document forming part of, or connected with, the bargain between the parties, or which existed at any time until the dispute between the parties, suggested in any way that the deal between the parties was to be, or was to include, the sale of freehold. In my view Bytan (and any other Franchisee) would have been surprised to have been told that entering into the Franchise Agreement had conferred upon the Franchisor an option to purchase the land at a non specified price upon termination of the franchise, and, furthermore, without a fee. The grant of an option over the freehold would be a significant commercial transaction of a kind that is unlikely to be intended to have been included in a clause directed primarily to the acquisition of items of trading stock used in a video hire store. It is one thing for clause 18.13 to include leases in the meaning of the words "all the assets used" in the STORE but quite another to say that they did not need to specify that the freehold was also to be included because it was included in any event. Indeed it is the improbability of the words "all the assets" being understood to include real property that may explain the parties' caution of expressly including leasehold interests within the meaning of the term. Another consideration against the Franchisee's construction can be seen from the improbability of the parties wishing to put themselves in the position that the option could only be exercised if the Franchisor purchased the freehold. The requirement that the Franchisor purchase "all" of the assets upon exercise of the option is in part a protection for the outgoing Franchisee by ensuring that all of the franchise assets are acquired, but it is improbable that the Franchisee would, by mere implication, put itself in the position of being compelled to sell the freehold at the election of the Franchisor. It is also improbable that the Franchisor would put itself in the position of not having the right to choose whether or not to purchase the freehold if it had otherwise wanted the ability to acquire the freehold as well as the other assets upon termination of the franchise. The Franchise Agreement would be expected to deal specifically and in detail with the sale of so significant an asset and to include detailed provisions concerning other parties with potential claims upon the real estate.