Sentence: Genistein reduced Bcl-2 phosphorylation triggered by paclitaxel and vincristine without changing Bax protein expression .
Drug combination annotation:
[{'class': 'POS', 'spans': ['Genistein', 'paclitaxel'], 'is_context_needed': False}, {'class': 'POS', 'spans': [0, 2], 'is_context_needed': False}]