Table 7:

Examples of the 5 instances where annotators changed their mind based on evidence shown.

Annotator	Model	Sorting	Changes	Best Evidence	Usefulness	Synthetic Label
2	LLM Evidence	Confidence Sorting	Pneumonia: Unlikely → Somewhat likely	There is a small right pneumothorax. There is extensive consolidation of the right upper lobe. Consolidation in the right lower lobe is mostly located in the superior segment. The left lung is grossly clear. There. Signs: There is extensive consolidation of the right upper lobe. Consolidation in the right lower lobe is mostly located in the superior segment. The left lung is grossly clear. There is no left pleural effusion. There is	Useful for Pneumonia	Pneumonia
4	LLM Evidence	Confidence Sorting	Pulmonary Edema: Unlikely → Somewhat	Atrial fibrillation with rapid ventricular response. Compared to the previous tracing atrial fibrillation is seen. Other findings are similar. The patient is at risk of pulmonary edema.	Useful for Pulmonary Edema	Pulmonary Edema
3	All EHR	Log Odds Sorting	Cancer: Unlikely → Very likely	Basal cell skin ca. [**27**].	Useful for Cancer	Pulmonary Edema
4	All EHR	Log Odds Sorting	Cancer: Unlikely → Somewhat	o.b.resident to see pt., pt.waiting for a •biopsy•.	Useful for Cancer	Pulmonary Edema
4	All EHR	Log Odds Sorting	Pulmonary Edema: Somewhat likely → Unlikely, Pneumonia: Somewhat likely → Very likely	There is increased opacity in the. retrocardiac left lower lobe, as well as the right lower lobe, which could be. due to atelectasis, aspiration, or possibly pneumonia.	Very Useful for Pneumonia
1	LLM Evidence	Log Odds Sorting	Pneumonia: Somewhat likely → Very likely	CXR showed L middle/lower lobe PNA, prob asp PNA.	Very Useful for Pneumonia
4	LLM Evidence	Log Odds Sorting	Cancer: Unlikely → Very likely	CLL. Signs: id: pmh of CLL	Very Useful for Cancer