Question: who was involved in the battle of ortona
[{'answer': 'Canada', 'provenance': [{'wikipedia_id': '1086813', 'title': 'Battle of Ortona', 'start_paragraph_id': 10, 'start_character': 159, 'end_paragraph_id': 10, 'end_character': 165, 'bleu_score': 1.0, 'section': 'Section::::Battle.\n'}]}, {'answer': 'Germany'}, {'answer': 'Italian Social Republic'}]