{% if ea.entity.instance is not null and ea.entity.instance.parent is defined %}
    <nav aria-label="breadcrumb">
        <ol class="breadcrumb">
            <li class="breadcrumb-item"><a href="{{ ea_url().unset('entityId').generateUrl() }}">Index</a></li>

            {% set parent =  ea.entity.instance.parent %}
            {% if parent is not null %}
                <li class="breadcrumb-item"><a
                            href="{{ ea_url({ entityId: parent.id }).generateUrl() }}">{{ parent.title }}</a></li>
                {% set grand_parent =  parent.parent %}
                {% if grand_parent is not null %}
                    <li class="breadcrumb-item"><a
                                href="{{ ea_url({ entityId: grand_parent.id }).generateUrl() }}">{{ grand_parent.title }}</a>
                    </li>
                {% endif %}
            {% endif %}
            <li class="breadcrumb-item active" aria-current="page">{{ ea.entity.instance.title }}</li>
        </ol>
    </nav>
{% endif %}