#include<iostream>
#include<algorithm>
#include<cstdio>
#include<map>
#include<cmath>
using namespace std;
int f[1010000][21],n,m,a[100010];
map<int,int>year;
inline int read()
{
int x=0,f=1;char ch=getchar();
while (!isdigit(ch)){if (ch=='-') f=-1;ch=getchar();}
while (isdigit(ch)){x=x*10+ch-48;ch=getchar();}
return x*f;
}
inline void write(int x)
{
char f[200];
int tmp=x>0?x:-x,cnt=0;
if(x<0)putchar('-');
while(tmp>0)f[cnt++]=tmp%10+'0',tmp/=10;
while(cnt>0)putchar(f[--cnt]);
putchar('\n');
}
void ST()
{
for(int i=1;i<=20;i++)
for(int p=1;p<=n-(1<<i)+1;p++)
f[p][i]=max(f[p][i-1],f[p+(1<<(i-1))][i-1]);
}
int ask(int l,int r)
{
int Log=log2(r-l+1);
return max(f[l][Log],f[r-(1<<Log)+1][Log]);
}
int main()
{
n=read();
for(int p=1,x,y;p<=n;p++)
{
cin>>x>>y;
year[x]=p,f[p][0]=y;
}
ST();
m=read();
for(int p=1,x,y;p<=m;p++)
{
cin>>y>>x;
int flag=0;
if(x<=y)
{
cout<<"false"<<endl;
continue;
}
if((!year[y]&&year[x])||(!year[x]&&year[y]))
{
if(year[x]-year[y]>1)
{
while(!year[y])y++;
if(y>=x)
{
cout<<"maybe"<<endl;
continue;
}
if(ask(year[y],year[x]-1)>=f[year[x]][0])
{
cout<<"false"<<endl;
continue;
}
else
cout<<"maybe"<<endl;
continue;
}
else cout<<"maybe"<<endl;
continue;
}
if(x-y==1)
{
if(year[x]-year[y]!=1)
{
cout<<"maybe"<<endl;
continue;
}
if(f[year[y]][0]<f[year[x]][0])
cout<<"false"<<endl;
else
cout<<"ture"<<endl;
continue;
}
if(f[year[y]][0]<f[year[x]][0])
{
cout<<"false"<<endl;
continue;
}
if(!year[y]&&!year[x])
{
cout<<"maybe"<<endl;
continue;
}
if(year[x]-year[y]!=x-y)
{
if(year[x]-year[y]>1)
{
if(ask(year[y]+1,year[x]-1)>=f[year[x]][0])
{
cout<<"false"<<endl;
continue;
}
else
cout<<"maybe"<<endl;
continue;
}
else cout<<"maybe"<<endl;
continue;
}
if(ask(year[y]+1,year[x]-1)>=f[year[x]][0])
{
cout<<"false"<<endl;
continue;
}
cout<<"ture"<<endl;
}
}
数据太大,调不动了/kk