#include<bits/stdc++.h>
using namespace std;

int main(){
    // freopen("in.in", "r", stdin);
    string S;
    map<string, vector<string>> mp;
    vector<string> ans;
    while(getline(cin, S)){
        istringstream ist(S);
        string st, bug;
        int ok = 0;
        while(ist >> st){
            if(!ok) bug = st, ok = 1;
            else{
                if(st.back() == ',') mp[st.substr(0, st.length() - 1)].push_back(bug), ans.push_back(st.substr(0, st.length() - 1));
                else mp[st].push_back(bug), ans.push_back(st);
            }
        }
    }
    map<string, bool> vis;
    for(auto key : ans){
        if(vis[key]) continue;
        for(int i = 0;i < key.length();i ++) if(key[i] != ',') cout << key[i];
        cout << ": ";
        for(int i = 0;i < mp[key].size();i ++){
            for(int j = 0;j < mp[key][i].length();j ++){
                if(mp[key][i][j] != ':') cout << mp[key][i][j];
            }
            if(i  + 1 < mp[key].size()) cout << ", ";
            else cout << '\n';
        } 
        vis[key] = true;
    }
}