The figure below shows the nodes (A-I) and capacities (labelled on arcs in TB/s) of a computer network. The firm would like to know how much information can flow from node A to node I. 
How many transshipment nodes are present in this problem?
Definitions:
Annual Return
The percentage gain or loss on an investment over a one-year period, including dividends and capital gains.
Vincent Van Gogh
A Dutch post-impressionist painter known for his influence on the history of Western art with his vivid paintings.
Investment
Investment refers to the act of allocating resources, usually money, with the expectation of generating an income or profit.
Retirement Account
A financial account designed for saving funds to be used during an individual's retirement years, often offering tax benefits.
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