Question: who was involved in the battle of trenton
[{'answer': 'Hessian soldiers garrisoned at Trenton'}, {'answer': 'the main body of the Continental Army'}, {'provenance': [{'wikipedia_id': '230033', 'title': 'Battle of Trenton', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 576, 'bleu_score': 0.8914003758414051, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16667020718514545024}, 'section': 'Section::::Abstract.'}]}]