AT&T sold the building in 2007, and as of 2013, Internet company Yelp is the main tenant.
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: AT&T sold the building in 2007, and as of 2013, Internet company Yelp is the main tenant. ### Response: .