#include<bits/stdc++.h>
using namespace std;
using ll=long long;
using pp=pair<int,int>;
#define sr string 
#define vc vector
#define db double
#define fi first
#define se second
#define rep(i,n) for(int i=0;i<(int)n;i++)
#define pb push_back
#define all(v) v.begin(),v.end()
#define pque priority_queue
#define bpc(a) __builtin_popcount(a)
int main(){
	int n,k,q;cin>>n>>k>>q;
	vc<int>a(k),b(k); rep(i,k)cin>>a[i]>>b[i]; rep(i,k)a[i]--,b[i]--;
	vc<int>v(n); rep(i,n)v[i]=i;
	rep(i,k)swap(v[a[i]],v[b[i]]);
	vc<int>rv(n); rep(i,n)rv[v[i]]=i;
	vc rs(k,vc<pp>(0)); vc ls(k,vc<int>(0));
	vc<int>ans(q,-1);
	rep(i,q){
		int l,r,x;cin>>l>>r>>x;
		l--; r--; x--;
		rs[r].pb({i,x}); ls[l].pb(i);
	}
	for(int i=k-1;i>=0;i--){
		for(auto [qi,x]:rs[i])ans[qi]=v[x];
		swap(v[a[i]],v[b[i]]); swap(rv[v[a[i]]],rv[v[b[i]]]);
		for(auto  qi:ls[i])ans[qi]=rv[ans[qi]];
	}
	rep(i,q)cout<<ans[i]+1<<"\n";
}