Your task is to predict the verdict of a claim based on the provided question-answer pair evidence. The possible labels are: 'Supported', 'Refuted', 'Not Enough Evidence', 'Conflicting Evidence/Cherrypicking'. Justify your answer using the provided evidence and select the correct label.

Claim: Thrombosis is The Leading Cause Of COVID-19 Deaths

Q1: What is Thrombosis?
A1: Thrombosis is the formation of a blood clot in a blood vessel. The vessel may be any vein or artery as for example, in a deep vein thrombosis (venous) or a coronary artery (arterial). The clot itself is termed a thrombus.
Once formed, a clot can slow or block normal blood flow, and even break loose and travel to an organ. A clot that travels to the circulation is called an embolism. Thrombosis is the often preventable underlying pathology of heart attack, thromboembolic stroke, and venous thromboembolism (VTE), the top three cardiovascular killers.

Q2: Can Covid 19 cause a Thrombosis?
A2: Yes, because COVID-19 is a hypercoagulable state with an increased risk of thromboembolism in hospitalized individuals (typically venous but may be arterial).

Q3: Is Thrombosis the leading killer in patients dying with covid19?
A3: No, because In several studies of those who died of COVID-19, acute respiratory failure was the leading cause of death.
user
justification: From the 3rd question and answer it seems that thrombosis is not the leading cause of death.  Therefore the claim is refuted 

verdict: 'Refuted'
assistant