question: Chi era in lizza per le primarie del Partito Democratico nel 2020 e fu senatore del Delaware?
answerText: Joe Biden
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questionEntity.entityType: entity
questionEntity.label: United States senator
questionEntity.name: Q38051551
questionEntity.entityType: entity
questionEntity.label: 2020 Democratic Party presidential primaries
questionEntity.name: Q1393
questionEntity.entityType: entity
questionEntity.label: Delaware
answerEntity.name: Q6279
answerEntity.label: Joe Biden