ol=&#39;DESCRIPTION&#39;, verbose=False, log=False):
    &#34;&#34;&#34;Function to classify terms that have been specifically defined in the terms_df.

    Parameters
    ----------
    df : pandas.DataFrame
        Input dataframe with unclassified well descriptions.
    terms_df : pandas.DataFrame
        Dataframe containing the classifications
    description_col : str, default=&#39;FORMATION&#39;
        Column name in df containing the well descriptions, by default &#39;FORMATION&#39;.
    terms_col 