def corpus_return(ordered_matrix, document_dataframe):
    """
    For a given document ID, returns the document text. (for summarizer)
    :param ordered_matrix: A matrix in row value form tuple
    :param document_dataframe: The original dataframe with the documents
    :return:  List of the text of the files
    """
    document_list = [document_dataframe.iloc[document[0]].text
                     for document in ordered_matrix]
    return document_list