Task: songer_usc1

What follows is an opinion from a United States Court of Appeals.
Your task is to identify the most frequently cited title of the U.S. Code in the headnotes to this case. Answer "0" if no U.S. Code titles are cited. If one or more provisions are cited, code the number of the most frequently cited title.

PER CURIAM.
This was an action by the plaintiff in error for alleged malicious prosecution. Nothing is presented for review, except rulings of the court on objections to evidence. We think that each of those rulings obviously is either so free from error or nonprejudicial that no more need be said than that none of them involved reversible error. The judgment is affirmed.

Question: What is the most frequently cited title of the U.S. Code in the headnotes to this case? Answer with a number.
Answer:

Answer: 0