Question: when is a rain delay called in baseball
[{'answer': 'onset of rain', 'provenance': [{'wikipedia_id': '5619028', 'title': 'Rainout (sports)', 'start_paragraph_id': 2, 'start_character': 36, 'end_paragraph_id': 2, 'end_character': 49, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5619028', 'title': 'Rainout (sports)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 472, 'bleu_score': 0.974188104609039, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14828881687569224434}, 'section': 'Section::::Abstract.'}]}]