def create_dataframe_votes(votes=[[1,1], [1,1], [0,1], [1,0]], rows=['A', 'B', 'C', 'D'], ballots=['Ballot1', 'Ballot2']):
    df = pd.DataFrame(votes, columns=ballots)
    df.index = ['A', 'B', 'C', 'D']
    return df