Question: which was the first airline to begin code-sharing agreements with southwest airlines
[{'answer': 'ATA Airlines', 'provenance': [{'wikipedia_id': '63032', 'title': 'Southwest Airlines', 'start_paragraph_id': 14, 'start_character': 12, 'end_paragraph_id': 14, 'end_character': 24, 'bleu_score': 1.0, 'section': 'Section::::Airline partnerships.:Past.\n'}]}, {'provenance': [{'wikipedia_id': '63032', 'title': 'Southwest Airlines', 'start_paragraph_id': 14, 'start_character': 0, 'end_paragraph_id': 14, 'end_character': 261, 'bleu_score': 0.948006874591591, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3245756902477422747}, 'section': 'Section::::Airline partnerships.:Past.\n'}]}]