using System;
using System.Collections.Generic;
using System.Collections;
using System.Collections.Specialized;
using System.Linq;
using System.Text;
using System.IO;
using System.Reflection;
using static System.Math;
using System.Numerics;
static class Program{
	const int mod=(int)1e9+7;
	static void Main(){
		Sc sc=new Sc();
		int[] s=sc.Ia;
		int n=s[0],m=s[1];

		long inf=long.MaxValue>>1;
		var dp=new long[n+1][];
		var st=new string[n+1][];
		var rt=new int[n+1][][];
		for(int i=1;i<=n;i++){
			dp[i]=new long[n+1];
			st[i]=new string[n+1];
			rt[i]=new int[n+1][];
			for(int j=1;j<=n;j++){
				if(i!=j){dp[i][j]=inf;}
				else{st[i][j]="0";}
			}
		}
		for(int i=0;i<m;i++){
			var e=sc.Ia;
			dp[e[0]][e[1]]=dp[e[1]][e[0]]=e[2];
			st[e[0]][e[1]]=e[1].ToString();
			st[e[1]][e[0]]=e[0].ToString();
		}

		for(int i=1;i<=n;i++){
			for(int j=1;j<=n;j++){
				for(int k=1;k<=n;k++){
					if(dp[j][k]>dp[j][i]+dp[i][k]){
						dp[j][k]=dp[j][i]+dp[i][k];
						st[j][k]=st[j][i]+" "+st[i][k];
					}
				}
			}
		}
		for(int i = 1;i<=n;i++) {
			for(int j = 1;j<=n;j++) {rt[i][j]=Array.ConvertAll(st[i][j].Split(),int.Parse);}
		}
		var f=sc.Ia;
		int t=sc.I;
		int mp=0,tp=0;
		var hm=new int[n+1];
		var ht=new int[n+1];
		var hc=new int[t+2];
		int c1=1,c2=0;
		int go=1,ck=0;
		long kr=0;
		for(int i = 0;i<t;i++) {
			var g=sc.I;
			if(g==1){
				var e=sc.Ia;
				if(hm[e[1]]==0){mp++;}
				hm[e[1]]++;
				hc[e[0]]=e[1];
			}
			g=sc.I;
			for(int j = 0;j<g;j++) {
				var e=sc.I;
				hm[hc[e]]--;ht[hc[e]]++;
				if(hm[hc[e]]==0){mp--;}
				if(ht[hc[e]]==1){tp++;}
				c2=hc[e];
				c1=1;
			}
			//if(kr==0&&go==c2){c2=0;}
			if(c2==0){
				Console.WriteLine("{0}",-1);
			}
			else{
				if(kr==0){
					if(ht[go]>0){tp--;}
					ht[go]=0;
					if(go==1){
						if(c2==1){c2=2;}
						c1=1;
						go=rt[c1][c2][0];
						kr=dp[c1][go];
						ck=0;
					}
					else if(go==c2){
						c1=c2;
						c2=1;
						go=rt[c1][c2][0];
						kr=dp[c1][go];
						ck=0;
					}
					else{
						ck++;
						kr=dp[go][rt[c1][c2][ck]];
						go=rt[c1][c2][ck];
					}
				}
				Console.WriteLine("{0}",go,kr);
				kr--;
			}
			if(sc.S=="NG"){break;}
			g=sc.I;
			for(int j = 0;j<g;j++) {var e=sc.I;}
		}
	}
}

public class Sc{
	public int I{get{return int.Parse(Console.ReadLine());}}
	public long L{get{return long.Parse(Console.ReadLine());}}
	public double D{get{return double.Parse(Console.ReadLine());}}
	public string S{get{return Console.ReadLine();}}
	public int[] Ia{get{return Array.ConvertAll(Console.ReadLine().Split(),int.Parse);}}
	public long[] La{get{return Array.ConvertAll(Console.ReadLine().Split(),long.Parse);}}
	public double[] Da{get{return Array.ConvertAll(Console.ReadLine().Split(),double.Parse);}}
	public string[] Sa{get{return Console.ReadLine().Split();}}
	public object[] Oa{get{return Console.ReadLine().Split();}}
	public int[] Ia2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),int.Parse);}}
	public int[] Ia3(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),int.Parse);}
	public int[] Ia3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).Split(),int.Parse);}
	public long[] La2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),long.Parse);}}
	public long[] La3(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),long.Parse);}
	public long[] La3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).Split(),long.Parse);}
	public T[] Arr<T>(int n,Func<T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f();}return a;}
	public T[] Arr<T>(int n,Func<int,T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(i);}return a;}
	public T[] Arr<T>(int n,Func<string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(Console.ReadLine().Split());}return a;}
	public T[] Arr<T>(int n,Func<int,string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(i,Console.ReadLine().Split());}return a;}
}

Measured memory_bytes: 96736