def METHOD_NAME():
    """Returns connectivity map for the TII 21 qubit chip"""
    Q = ["q" + str(i) for i in range(21)]
    chip = nx.Graph()
    chip.add_nodes_from(Q)
    graph_list_h = [(Q[i], Q[i + 1]) for i in range(20) if i % 5 != 2]
    graph_list_v = [
        (Q[3], Q[8]),
        (Q[8], Q[13]),
        (Q[0], Q[4]),
        (Q[4], Q[9]),
        (Q[9], Q[14]),
        (Q[14], Q[18]),
        (Q[1], Q[5]),
        (Q[5], Q[10]),
        (Q[10], Q[15]),
        (Q[15], Q[19]),
        (Q[2], Q[6]),
        (Q[6], Q[11]),
        (Q[11], Q[16]),
        (Q[16], Q[20]),
        (Q[7], Q[12]),
        (Q[12], Q[17]),
    ]
    chip.add_edges_from(graph_list_h + graph_list_v)
    return chip