Question: who does lou end up with on heartland
[{'answer': 'Mitch', 'provenance': [{'wikipedia_id': '11643045', 'title': 'Heartland (Canadian TV series)', 'start_paragraph_id': 20, 'start_character': 29, 'end_paragraph_id': 20, 'end_character': 34, 'bleu_score': 1.0, 'section': 'Section::::Cast and characters.:Recurring.\n'}]}]