Question: How much money was robbed in a shippment from the San Francisco Mint to a bank in the East that is the biggest single robbery in the history of the a freight hauling railroad that operates 8,500 locomotives over 32,100 route-miles in 23 states west of Chicago and New Orleans?
Sentence (from "Union Pacific Big Springs robbery"): The event remains the biggest single robbery in the history of the Union Pacific Railroad.
Relevant evidence: No