As of 2012, there are only two known examples left in existence and both have been owned by the same person since 1959.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: As of 2012, there are only two known examples left in existence and both have been owned by the same person since 1959. ### Response: .