Table: 2007 - 08 new jersey devils season
Question: Which teams were the most difficult opponents for the New Jersey Devils during the 2007-08 season? (based on number of wins or losses)
Step 1 (Reasoning, Other Commonsense Reasoning): the most difficult opponents based on number of wins or losses
Step 2 (Operation, Indexing): visitor
Step 3 (Operation, Indexing): home
Step 4 (Reasoning, Aggregating): COUNT, New Jersey Devils'  number of lost games
Answer: washington