wait fetch('/graph.json').then(res => res.json());
                    const fullGraphData  = filterFullGraphData(graphData);
                    return {graphData, fullGraphData}
                    }

                    function getNextLevelNeighbours(existing, remaining) {
                    const keys = Object.values(existing).map((n) => n.neighbors).flat();
                    const n_remaining = Object.keys(remaining).reduce((acc, key) => {
                    if (keys.indexOf(key) != -1) {
        