#include <iostream>
#include <fstream>
#include <string>
#include <set>

using namespace std;

class filesystem_t
{
private:
	set<string> dirs, files;
public:
	void add(string path) {
		for(int i = 1; i < path.length(); i++) {
			if(path[i] == '/') {
				dirs.insert(path.substr(0, i));
			}
		}

		files.insert(path);
	}
public:
	string normalize(string path) {
		string cwd = "";
		int k = 0;

		for(int i = 1; i < path.length(); i++) {
			if(path[i] == '/') {
				string dst = path.substr(k, i - k);
				k = i;

				if(dst == "/..") {
					if(cwd.empty()) return "";
					cwd = cwd.substr(0, cwd.rfind('/'));
				}
				else if(dst != "/.") {
					cwd += dst;
					if(dirs.find(cwd) == dirs.end()) return "";
				}
			}
		}

		string base = path.substr(k);

		if(base == "/..") {
			if(cwd.empty()) return "";
			cwd = cwd.substr(0, cwd.rfind('/'));
		}

		if(base != "/" && base != "/." && base != "/..") {
			if(files.find(cwd + base) != files.end()) return cwd + base;
			cwd += base;
		}

		if(files.find(cwd + "/index.html") == files.end()) return "";
		return cwd + "/index.html";
	}
};

int main(void)
{
	ifstream cin("D.txt");
	int n, m;

	while(cin >> n >> m) {
		filesystem_t fs;

		for(int i = 0; i < n; i++) {
			string path;
			cin >> path;
			fs.add(path);
		}

		for(int i = 0; i < m; i++) {
			string q1, q2;
			cin >> q1 >> q2;
			q1 = fs.normalize(q1);
			q2 = fs.normalize(q2);

			if(!q1.empty() && !q2.empty()) {
				cout << (q1 == q2 ? "yes" : "no") << endl;
			}
			else {
				cout << "not found" << endl;
			}
		}
	}
}