Table: joakim bonnier
Question: Did Joakim Bonnier's performance improve when he switched from driving a Cooper T66 to a Brabham BT11? Answer with only 'Yes' or 'No' that is most accurate and nothing else.
Step 1 (Reasoning, Grounding): performance, points
Step 2 (Reasoning, Aggregating): AVG, points for Cooper T66
Step 3 (Reasoning, Aggregating): AVG, points for Brabham BT11
Step 4 (Reasoning, Other Commonsense Reasoning): performance improve
Answer: No