#include<bits/stdc++.h>
#include<queue>
#include<bitset>
#define N 50000
#define M 100000
using namespace std;
const int B=256;
int n,m,q,head[N+5],u[M+5],v[M+5];
bool col[M+5],vise[M+5];
struct edge {int to,nxt;} e[M+5];
struct ask
{
	int opt,k,u,v;
	inline void read()
	{
		scanf("%d",&opt);
		if(opt==1) scanf("%d",&k);
		else scanf("%d %d",&u,&v);
	}
}a[N+5];
namespace tarjan
{
	int dfn[N+5],low[N+5],tot,cur[N+5],cnt,st[N+5],top;
	bool vis[N+5];
	vector<int> E[N+5];
	#define y e[i].to
	inline void dfs(int x)
	{
		dfn[x]=low[x]=++tot,vis[st[++top]=x]=1;
		for(int i=head[x];i;i=e[i].nxt) if(!vise[i] && col[i])
		{
			if(!dfn[y]) dfs(y),low[x]=min(low[x],low[y]);
			else if(vis[y]) low[x]=min(low[x],dfn[y]);
		}
		if(low[x]==dfn[x]) for(st[top+1]=0,++cnt;st[top+1]!=x;--top)
			cur[st[top]]=cnt,vis[st[top]]=0;
	}
	inline void solve()
	{
		memset(dfn+1,0,n<<2),tot=0;
		memset(low+1,0,n<<2),cnt=0;
		for(int i=1;i<=n;++i)
			if(!dfn[i]) dfs(i);
		for(int i=0;i<cnt;++i) E[i].clear();
		for(int x=1;x<=n;++x) for(int i=head[x];i;i=e[i].nxt)
			if(!vise[i] && col[i]) E[cur[x]].push_back(cur[y]);
	}
	#undef y
}
using tarjan::cnt;
using tarjan::cur;
using tarjan::E;
bitset<B*2> dis[N+5],nowe[B*2],now,temp;
int p[M*2+5],id[N+5],tot;
queue<int> que;
inline void add(int x) {if(!~id[x]) p[id[x]=tot++]=x;}
inline void get_dis()
{
	for(int x=1;x<=cnt;++x)
	{
		dis[x].reset();
		for(int y:E[x]) dis[x]|=dis[y];
		if(~id[x]) dis[x].set(id[x]),nowe[id[x]]=dis[x];
	}
}
int main()
{
	scanf("%d %d %d",&n,&m,&q);
	for(int i=1;i<=m;++i)
	{
		scanf("%d %d",u+i,v+i),col[i]=1;
		e[i]={v[i],head[u[i]]},head[u[i]]=i;
	}
	for(int i=1;i<=q;++i) a[i].read();
	for(int t=1;t<=q;t+=B)
	{
		for(int i=t;i<t+B;++i)
			if(a[i].opt==1) vise[a[i].k]=1;
		tarjan::solve(),tot=0;
		memset(id+1,-1,cnt<<2);
		for(int i=t;i<t+B;++i)
			if(a[i].opt==1) add(cur[u[a[i].k]]),add(cur[v[a[i].k]]);
			else add(cur[a[i].u]),add(cur[a[i].v]);
		get_dis();
		for(int i=t;i<t+B;++i) if(a[i].opt==1)
		{
			a[i].u=id[cur[u[a[i].k]]],a[i].v=id[cur[v[a[i].k]]];
			!dis[p[a[i].u]][a[i].v] && (nowe[a[i].u].set(a[i].u,col[a[i].k]),1);
		}
		for(int i=1;i<min(q+1,t+B);++i)
			if(a[i].opt==1) vise[a[i].k]=0,col[a[i].k]^=1,
				!dis[p[a[i].u]][a[i].v] && (nowe[a[i].u].set(a[i].v,col[a[i].k]),1);
			else
			{
				now.set(),que.push(id[cur[a[i].u]]),now.reset(que.front());
				while(!que.empty())
				{
					int x=que.front();que.pop(),temp=nowe[x]&now;
					for(int y=temp._Find_first();y<tot;y=temp._Find_next(y))
						que.push(y),now.reset(y);
				}
				puts(now[id[cur[a[i].v]]]?"NO":"YES");
			}
		memset(id,0,tot);
	}
	return 0;
}