Question: Which river in the English county of Warwickshire has a ferry named after the main antagonist from the William Shakespeare comedy Twelfth Night?
Sentence (from "Stratford-upon-Avon chain ferry"): The Stratford-upon-Avon chain ferry is a manually operated pedestrian chain ferry across the River Avon in the town of Stratford-upon-Avon in the English county of Warwickshire.
Relevant evidence: Yes