Table: 1930 giro d'italia
Question: Did the race leader change frequently throughout the race, or did one rider maintain the lead for most of the race? Answer with only 'change frequently' or 'one rider maintain the lead for most of the race' that is most accurate and nothing else.
Step 1 (Operation, Indexing): race leader
Step 2 (Operation, Grouping): race leader
Step 3 (Reasoning, Aggregating): COUNT, nunber of race leader
Step 4 (Reasoning, Other Commonsense Reasoning): 'change frequently' and 'one rider maintain the lead for most of the race'
Answer: one rider maintain the lead for most of the race