Question: where do west ham play their home games
[{'answer': 'London Stadium', 'provenance': [{'wikipedia_id': '46417', 'title': 'West Ham United F.C.', 'start_paragraph_id': 1, 'start_character': 195, 'end_paragraph_id': 1, 'end_character': 209, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '46417', 'title': 'West Ham United F.C.', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 209, 'bleu_score': 0.6560902994944331, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15805487214435193563}, 'section': 'Section::::Abstract.'}]}]