एक्सट्रैक्टिव QA

annotation_schemes:
  - annotation_type: extractive_qa
    name: answer_span
    description: Highlight the answer to the question in the passage below.
    question_field: question
    passage_field: passage
    allow_unanswerable: true

annotation_schemes:
  - annotation_type: extractive_qa
    name: squad_answer
    description: >
      Select the shortest span in the passage that answers the question.
      If the question cannot be answered from the passage, mark it as unanswerable.
    question_field: question
    passage_field: context
    allow_unanswerable: true
    highlight_color: "#FFEB3B"

{
  "id": "q001",
  "question": "When was the university founded?",
  "context": "The University of Michigan was founded in 1817 in Detroit and moved to Ann Arbor in 1837. It is one of the oldest public universities in the United States."
}

annotation_schemes:
  - annotation_type: extractive_qa
    name: evidence_span
    description: >
      Highlight the evidence in the passage that supports or refutes the claim.
      Mark as unanswerable if the passage contains no relevant evidence.
    question_field: claim
    passage_field: document
    allow_unanswerable: true
    highlight_color: "#81C784"

annotation_schemes:
  - annotation_type: extractive_qa
    name: definition_extraction
    description: >
      Highlight the definition of the term in the passage.
      Every passage contains a definition — select the most precise span.
    question_field: term
    passage_field: text
    allow_unanswerable: false
    highlight_color: "#64B5F6"

{
  "answer_span": {
    "labels": {
      "answer_start": 45,
      "answer_end": 49,
      "answer_text": "1817",
      "unanswerable": false
    }
  }
}

{
  "answer_span": {
    "labels": {
      "unanswerable": true
    }
  }
}