Section 502(b)(6) of the Bankruptcy Code caps the amount of a lessor’s claim against a debtor-lessee for damages arising from the termination of a real property lease. The statutory cap is calculated according to a formula that considers, among other things, the date on which the lessor “repossessed” or the debtor-lessee “surrendered” the leased property. Because those terms are not defined in the Bankruptcy Code, however, courts disagree as to whether state or federal law should determine their meanings for the purpose of calculating the allowed amount of the lessor’s claims.