#include <iostream>
#include <fstream>
#include <string>
#include <stack>
#include <set>
#include <vector>
using namespace std;

void ins_dirs(string &s,set<string> &d)
{
  string tmp;
  for (int i=0;i<s.length();i++){
    tmp+=s[i];
    if (s[i]=='/') d.insert(tmp);
  }
}

string to_dir(stack<string> st)
{
  string ret="/";
  while(!st.empty()){
    ret=st.top()+ret;
    ret="/"+ret;
    st.pop();
  }
  return ret;
}

string cannonical(string &s,set<string> &dirs)
{
  vector<string> path;

  string tmp;
  for (int i=0;i<s.length();i++){
    if (s[i]=='/'){
      if (tmp!="")
	path.push_back(tmp);
      tmp=string("");
    }
    else
      tmp+=s[i];
  }
  string fname=tmp;
  if (fname==".."||fname==".")
    path.push_back(fname);

  stack<string> st;
  for (int i=0;i<path.size();i++){
    if (path[i]==".."){
      if (st.size()==0)
	return "ERROR";
      st.pop();
    }
    else if (path[i]=="."){
    }
    else{
      st.push(path[i]);
      if (dirs.count(to_dir(st))==0)
	return "ERROR";
    }
  }

  if (fname==".."||fname==".")
    return to_dir(st);
  else
    return to_dir(st)+fname;
}

set<string>::iterator find_file(string s,set<string> &files)
{
  set<string>::iterator p=files.find(s);
  if (p==files.end()&&s[s.length()-1]=='/')
    p=files.find(s+"index.html");
  if (p==files.end()&&s[s.length()-1]!='/'){
    p=files.find(s+"/index.html");
  }
  return p;
}

int main()
{
  ifstream cin("D.txt");

  int n,m;
  while(cin>>n>>m){
    set<string> files;
    set<string> dirs;
    for (int i=0;i<n;i++){
      string s;cin>>s;
      files.insert(s);
      ins_dirs(s,dirs);
    }
    /*
    for (set<string>::iterator p=dirs.begin();
	 p!=dirs.end();p++)
      cout<<*p<<endl;
    */
    for (int i=0;i<m;i++){
      string s,t;cin>>s>>t;
      s=cannonical(s,dirs);
      t=cannonical(t,dirs);

      //cout<<"*** "<<s<<" "<<t<<endl;

      set<string>::iterator p,q;
      p=find_file(s,files);
      q=find_file(t,files);
      if (p==files.end()||q==files.end())
	cout<<"not found"<<endl;
      else if (p==q)
	cout<<"yes"<<endl;
      else
	cout<<"no"<<endl;
    }
  }
  
  return 0;
}