Question: who fought on the side of the republicans in the spanish civil war brainly
[{'answer': 'Soviet Union', 'provenance': [{'wikipedia_id': '31594699', 'title': 'Nationalist faction (Spanish Civil War)', 'start_paragraph_id': 28, 'start_character': 523, 'end_paragraph_id': 28, 'end_character': 535, 'bleu_score': 1.0, 'section': 'Section::::Foreign support.:Italy.\n'}]}, {'provenance': [{'wikipedia_id': '31594699', 'title': 'Nationalist faction (Spanish Civil War)', 'start_paragraph_id': 28, 'start_character': 0, 'end_paragraph_id': 28, 'end_character': 828, 'bleu_score': 0.9669266300094901, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9831102296528712853}, 'section': 'Section::::Foreign support.:Italy.\n'}]}]