Hierarchical Structure

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="100"
    height="100"
    viewBox="0 0 193.079 193.079"
>
    <path
        d="M145.743 52.008c-11.399 0-20.675 9.276-20.675 20.686 0 11.402 9.28 20.679 20.675 20.679 11.406 0 20.679-9.276 20.679-20.679 0-11.41-9.276-20.686-20.679-20.686zm0 37.166c-9.087 0-16.484-7.397-16.484-16.481 0-9.09 7.397-16.488 16.484-16.488 9.09 0 16.477 7.401 16.477 16.488 0 9.084-7.386 16.481-16.477 16.481z"
        fill="#010002"
    />
    <path
        d="M145.743 101.349c-9.57 0-17.572 6.574-19.92 15.428-2.974-.233-7.387-.565-11.352-.78-4.051-.211-7.698-3.178-11.238-6.041-1.55-1.267-3.028-2.448-4.438-3.353-2.405-1.746-4.552-3.654-6.632-5.504-3.643-3.235-7.229-6.345-11.56-8.009 1.364-1.206 2.63-2.77 3.797-4.91 4.101-6.836 4.041-14.204 3.99-21.334-.018-2.609-.036-5.304.147-7.906.655-8.167 6.038-18.932 12.233-24.472 4.885-4.252 10.658-5.579 16.77-6.989 2.656-.612 5.386-1.306 8.088-2.201 2.09 9.194 10.3 16.087 20.12 16.087 11.406 0 20.679-9.276 20.679-20.679C166.429 9.276 157.153 0 145.75 0c-11.399 0-20.675 9.276-20.675 20.686 0 .125.025.229.039.354-2.745.973-5.54 1.664-8.514 2.348-6.345 1.457-12.912 2.974-18.603 7.931-7.032 6.299-12.895 18.023-13.639 27.299-.2 2.784-.175 5.569-.157 8.256.054 6.854.1 13.328-3.439 19.229-1.954 3.611-3.998 5.146-6.703 5.794-.351 0-.673-.036-1.027-.014v-.007c-1.421-.054-2.928-.039-4.563-.025h-.748c-1.389-10.067-9.956-17.869-20.403-17.869-11.402 0-20.679 9.276-20.679 20.679 0 11.406 9.276 20.679 20.679 20.679 10.747 0 19.505-8.271 20.493-18.767h.372c.301 0 .573-.011.863-.011l.036.136c.315-.082.616-.082.927-.147.211-.007.444 0 .648-.014l-.004-.086h.004l.007.086a24.952 24.952 0 0 0 3.826-.429c5.855.229 9.938 3.718 14.906 8.135 2.154 1.915 4.381 3.894 7.061 5.826 1.313.845 2.691 1.968 4.148 3.149 3.876 3.139 8.256 6.689 13.66 6.972 3.79.204 7.984.515 10.926.752-.021.365-.104.712-.104 1.092 0 11.409 9.28 20.682 20.675 20.682 11.406 0 20.679-9.276 20.679-20.682-.019-11.408-9.295-20.685-20.698-20.685zm0-97.147c9.09 0 16.477 7.394 16.477 16.481s-7.387 16.481-16.477 16.481c-9.087 0-16.484-7.394-16.484-16.481s7.398-16.481 16.484-16.481zM47.307 111.138c-9.09 0-16.481-7.39-16.481-16.481 0-9.087 7.394-16.481 16.481-16.481 8.8 0 15.947 6.947 16.402 15.632v1.704c-.455 8.683-7.602 15.626-16.402 15.626zm98.436 27.374c-9.087 0-16.484-7.394-16.484-16.481s7.397-16.481 16.484-16.481c9.09 0 16.477 7.394 16.477 16.481s-7.386 16.481-16.477 16.481zM145.743 151.725c-11.399 0-20.675 9.269-20.675 20.675s9.28 20.679 20.675 20.679c11.406 0 20.679-9.276 20.679-20.679 0-11.405-9.276-20.675-20.679-20.675zm0 37.16c-9.087 0-16.484-7.394-16.484-16.481 0-9.087 7.397-16.481 16.484-16.481 9.09 0 16.477 7.394 16.477 16.481 0 9.087-7.386 16.481-16.477 16.481z"
        fill="#010002"
    />
</svg>