The ceremony was held on July 21, 1989 at the Century Plaza Hotel in Los Angeles, California.
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: The ceremony was held on July 21, 1989 at the Century Plaza Hotel in Los Angeles, California. ### Response: .