question: Which rainforest is the largest rainforest in North America and covers some 16.9 million acres?
answerText: Tongass National Forest
questionEntity.name: Q49
questionEntity.entityType: entity
questionEntity.label: North America
questionEntity.mention: North America
questionEntity.name: 16900000
questionEntity.entityType: quantity
questionEntity.mention: some 16.9 million acres
answerEntity.name: Q1502633
answerEntity.label: Tongass National Forest