digraph g {
        cluster -> "node";
        ingest -> preprocessing;
        ingest -> cluster;
        "node" -> index;
        preprocessing -> stemming;
        preprocessing -> utf8;
        query -> cluster;
        query -> preprocessing;
        stemming -> utf8;
}

digraph g {
        cluster -> "node";
        doc -> preprocessing;
        ingest -> doc;
        ingest -> cluster;
        "node" -> index;
        preprocessing -> stemming;
        preprocessing -> utf8;
        query -> cluster;
        query -> preprocessing;
        stemming -> utf8;
}
