Question: the northern expedition was a guomindang movement against whom in china
[{'answer': 'the Beiyang government', 'provenance': [{'wikipedia_id': '233102', 'title': 'Northern Expedition', 'start_paragraph_id': 1, 'start_character': 178, 'end_paragraph_id': 1, 'end_character': 200, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'other regional warlords', 'provenance': [{'wikipedia_id': '233102', 'title': 'Northern Expedition', 'start_paragraph_id': 1, 'start_character': 205, 'end_paragraph_id': 1, 'end_character': 228, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '233102', 'title': 'Northern Expedition', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 771, 'bleu_score': 0.502455507074686, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9683689944521742314}, 'section': 'Section::::Abstract.'}]}]