#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef unsigned long long int ull;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
ll myRand(ll B) { return (ull)rng() % B; }

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n, m;
    while (cin >> n >> m, n) {
        vector<string> s(n);
        map<string, int> mp;
        set<string> st;
        for (int i = 0; i < n; i++) {
            cin >> s[i];
            mp[s[i]] = i;
            for (int j = 0; j < s[i].size(); j++) {
                if (s[i][j] == '/') {
                    st.insert(s[i].substr(0, j));
                }
            }
        }

        auto get_path_idx = [&](string &s) -> int {
            vector<string> v;
            string cur = "";
            for (int i = 1; i <= s.size(); i++) {
                if (i == s.size() or s[i] == '/') {
                    if (cur == "..") {
                        if (v.size() == 0) return -1;
                        v.pop_back();
                    } else if (cur != ".") {
                        v.push_back(cur);
                    }
                    cur = "";
                    if (i < s.size()) {
                        string str = "";
                        for (auto &p : v) {
                            str += "/" + p;
                        }
                        if (st.find(str) == st.end()) return -1;
                    }
                } else {
                    cur += s[i];
                }
            }
            string str = "";
            for (auto &p : v) {
                str += "/" + p;
            }
            if (mp.find(str) != mp.end()) return mp[str];
            else return -1;
        };

        auto slv = [&](string s) -> vector<int> {
            vector<int> res;
            if (s.back() == '/') {
                s += "index.html";
                int r = get_path_idx(s);
                if (r != -1) res.push_back(r);
            } else {
                int r = get_path_idx(s);
                if (r != -1) res.push_back(r);
                s += "/index.html";
                r = get_path_idx(s);
                if (r != -1) res.push_back(r);
            }
            return res;
        };

        for (int i = 0; i < m; i++) {
            string s, t;
            cin >> s >> t;
            auto r = slv(s), rr = slv(t);
            if (r.size() == 0 or rr.size() == 0) {
                cout << "not found\n";
            } else {
                bool ok = false;
                for (int j : r) {
                    for (int jj : rr) {
                        if (j == jj) ok = true;
                    }
                }
                if (ok) {
                    cout << "yes\n";
                } else {
                    cout << "no\n";
                }
            }
        }
    }
}