def mutually_exclusive():
    """
    returns functional markers that the FM team came up with and we determined to be mostly mutually exclusive
    """
    MUTUALLY_EXCLUSIVE = ['agriculture, fishing, and forestry',
        'real estate', 'real estate construction',
        'real estate components and materials', 'real estate lessor',
        'public services', 'mining', 'extraction', 'media', 'tv and movies',
        'music', 'manufacturing', 'finished goods manufacturing',
        'components manufacturing', 'material manufacturing',
        'transportation', 'electricity', 'telecommunications', 'pipelines',
        'water and sewage systems', 'utility equipment and services',
        'gas utilities', 'healthcare', 'pharmaceuticals and biotech',
        'food processing and manufacturing', 'energy',
        'finance and banking', 'airplanes', 'trains', 'boats',
        'transportation of people', 'transportation of goods',
        'food services', 'entertainment establishments', 'tourism',
        'technology', 'hardware', 'software', 'retail',
        'wholesale and distribution', 'consumer services', 'business services']
    return MUTUALLY_EXCLUSIVE
