Among the events for which there is no other extant source is the defeat and death of Anthemiolus around 471.
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: Among the events for which there is no other extant source is the defeat and death of Anthemiolus around 471. ### Response: .