SystemComponents /Objects and Classes/

function solve(input){

    let obj = {};
    for (const line of input) {
        const [top, mid, low] = line.split(' | ');
        if(!obj.hasOwnProperty(top)){
            obj[top] = {};
            obj[top][mid] = [];
            obj[top][mid].push(low);
        }else{
            if(!obj[top].hasOwnProperty(mid)){
                obj[top][mid]=[];
            }
            obj[top][mid].push(low);
        }
    }
    let result = '';
    Object.entries(obj).sort((a,b)=>{
        if(Object.keys(b[1]).length === Object.keys(a[1]).length){
            return a[0].localeCompare(b[0]);
        }
        return Object.keys(b[1]).length - Object.keys(a[1]).length;
    }).forEach(pair=>{
        result += `${pair[0]}\n`;
        Object.entries(pair[1]).sort((a,b)=>{
            return b[1].length - a[1].length;
        }).forEach(pair=>{
            result+=`|||${pair[0]}\n`
            pair[1].forEach(line=>{
                result+=`||||||${line}\n`;
            })
        })
    });

return result;
}