def lattice_to_spacegroup(lattice):
    """ Converts a lattice to the spacegroup with the lowest symmetry
    possible for that lattice"""
    l2s = {'aP': 1, 'mP': 3, 'mC': 5, 'mI': 5, 'oP': 16, 'oC': 21, 'oI': 23,
        'oF': 22, 'tP': 75, 'tI': 79, 'hP': 143, 'hR': 146, 'hH': 146, 'cP':
        195, 'cF': 196, 'cI': 197}
    return l2s[lattice]
