In 1842, he entered in a partnership with Sumner Ballou to open his own grocery business.
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: In 1842, he entered in a partnership with Sumner Ballou to open his own grocery business. ### Response: .