In Aldridge v. Young, 689 S.W.2d 342 (Tex. App.--Fort Worth 1985, no writ), the court examined a provision which stated that "the lease shall be renegotiated" within a certain period surrounding the expiration date of each lease and that "the lessee has the option to extend this lease." Id. at 345-46. There, the appellees argued that any extension or option to extend the lease was invalid because the lease failed to specify the amount of rent applicable to the extended term. Id. at 347. In concluding that the renewal terms would be the same as that in the original lease, the court explained that "it is an established rule that a general covenant to renew or extend a lease which is silent as to the terms of the renewal or extension implies a renewal or extension upon the same terms and conditions as provided in the original lease. . . ." Id.