def METHOD_NAME(fl):
    """
    Subsets the flow list for all freshwater resource flows,
    excluding resource/air
    :param fl: df in standard flowlist format
    :return: df in standard flowlist format
    """
    flows = fl[fl["Flowable"]=="Water, fresh"]
    flows = flows[flows["Context"].str.startswith("resource")]
    flows = flows[~flows["Context"].str.startswith("resource/air")]
    return flows