Question: when does the national women's soccer league start
[{'answer': 'April', 'provenance': [{'wikipedia_id': '37901800', 'title': "National Women's Soccer League", 'start_paragraph_id': 4, 'start_character': 26, 'end_paragraph_id': 4, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::Competition format.\n'}]}, {'provenance': [{'wikipedia_id': '37901800', 'title': "National Women's Soccer League", 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 522, 'bleu_score': 0.837113495718076, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 409641893715314979}, 'section': 'Section::::Competition format.\n'}]}]