Example:

var bigTree = require('big-tree-cli');

var s = bigTree({
    label:"Phylogenetic",
    nodes:[
        {label:"Bacteria", nodes:["Aquifex","Gram positives","..."]},
        {label:"Archaea", nodes:["T.celer","Halophiles","..."]},
        {label:"Eukaryota", nodes:["Plants","Animals","..."]}
    ]
});

console.log(s);

Output: