Extractive QA Dataset — SQuAD v2 Format (JSON)

{
  "version": "v2.0",
  "data": [
    {
      "title": "Natural Processes",
      "paragraphs": [
        {
          "context": "The water cycle describes how water moves through the environment. Evaporation turns liquid water into vapour, which rises and cools to form clouds through condensation. Precipitation then returns the water to the surface as rain or snow.",
          "qas": [
            {
              "id": "wc-001",
              "question": "What turns liquid water into vapour?",
              "answers": [
                {
                  "text": "Evaporation",
                  "answer_start": 67
                }
              ],
              "is_impossible": false
            },
            {
              "id": "wc-002",
              "question": "What process forms clouds?",
              "answers": [
                {
                  "text": "condensation",
                  "answer_start": 156
                }
              ],
              "is_impossible": false
            },
            {
              "id": "wc-003",
              "question": "Which ocean current is mentioned?",
              "answers": [],
              "is_impossible": true
            }
          ]
        },
        {
          "context": "Photosynthesis allows plants to make food. Using sunlight, chlorophyll in the leaves converts carbon dioxide and water into glucose, releasing oxygen as a by-product.",
          "qas": [
            {
              "id": "ps-001",
              "question": "What do plants release as a by-product?",
              "answers": [
                {
                  "text": "oxygen",
                  "answer_start": 143
                }