#include<bits/stdc++.h>
using namespace std;
vector<string>name;
vector<vector<string>>g;
map<string,int>vis;
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr),cout.tie(nullptr);
    string u;
    while(cin>>u)
    {
        if(u.back()==':') u.pop_back();
        while(true)
        {
            string v;
            cin>>v;
            bool flag=false;
            if(v.back()==',') v.pop_back();
            else flag=true;
            if(vis.count(v)) g[vis[v]].emplace_back(u);
            else name.emplace_back(v),vis[v]=name.size()-1,g.push_back({u});
            if(flag) break;
        }
    }
    for(int i=0;i<(int)name.size();i++)
    {
        cout<<name[i]<<": ";
        for(int j=0;j<(int)g[i].size();j++)
        {
            cout<<g[i][j];
            if(j+1<(int)g[i].size()) cout<<", ";
            else cout<<"\n";
        }
    }
    return 0;
}