Question: when is blood donation celebrated in the world
[{'answer': '14 June', 'provenance': [{'wikipedia_id': '21420673', 'title': 'World Blood Donor Day', 'start_paragraph_id': 1, 'start_character': 14, 'end_paragraph_id': 1, 'end_character': 21, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '21420673', 'title': 'World Blood Donor Day', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 268, 'bleu_score': 0.9569637990759251, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17857372649431692314}, 'section': 'Section::::Abstract.'}]}]