Ally Corporate Finance, a unit of the Ally Bank subsidiary of Ally Financial Inc. that provides senior secured commercial-lending products to primarily U.S.-based, middle-market companies, today announced the formation of a team focused exclusively on fueling its expansion into the venture-backed technology sector.
Analyze the relationship between 'Ally Financial' and 'Ally Bank' within the context of the input sentence.
Options: creator, owner of, subsidiary, location of formation