#include <iostream>
#include <map>
#include <vector>
#include <string>
using namespace std;

struct sec{
	vector<int> pages;
};

struct pri{
	vector<int> pages;
	vector<string> secVec;
	map<string, sec> secIdx;
};

char toLr(char c){
	if(c >= 'A' && c <= 'Z') return c-'A'+'a';
	return c;
}

bool smaller(string &s1, string &s2){
	int l1 = s1.length(), l2 = s2.length();
	for(int i = 0; i < l1 && i < l2; i++){
		if(toLr(s1[i]) < toLr(s2[i])) return 1;
		if(toLr(s1[i]) > toLr(s2[i])) return 0;
	}
	if(l1 < l2) return 1;
	return 0;
}

void sort(vector<string> &vs){
	int sz = vs.size();
	for(int i = 1; i < sz; i++){
		for(int j = i; j > 0; j--){
			if(smaller(vs[j-1], vs[j])) break;
			string tmp = vs[j-1];
			vs[j-1] = vs[j];
			vs[j] = tmp;
		}
	}
}

int main() {
	string s;
	int docuNo = 1;
	while(1){
		//cout << "DOCUMENT " << docuNo << endl;
		bool firstLine = 1;
		int page = 1;
		bool inIdx = 0;
		bool hasPri = 0, hasSec = 0;
		string tempIdxCont = "";
		map<string, pri> priIdx;
		vector<string> priVec;
		while(1){
			getline(cin, s);
			if(s == "**") return 0;
			if(firstLine) cout << "DOCUMENT " << docuNo << endl;
			firstLine = 0;
			if(s == "*"){
				//统计,并输出之
				sort(priVec);
				int sz = priVec.size();
				for(int i = 0; i < sz; i++){
					string searchPri = priVec[i];
					pri& Pri = priIdx[searchPri];
					cout << searchPri;
					int pg = -1;
					for(int j = 0; j < Pri.pages.size(); j++){
						if(Pri.pages[j] != pg){
							cout << ", " << Pri.pages[j];
							pg = Pri.pages[j];
						}
					}
					cout << endl;
					if(!Pri.secVec.empty()){
						sort(Pri.secVec);
						int szz = Pri.secVec.size();
						for(int j = 0; j < szz; j++){
							sec& Sec = Pri.secIdx[Pri.secVec[j]];
							cout << "+ " << Pri.secVec[j];
							int pgg = -1;
							for(int k = 0; k < Sec.pages.size(); k++){
								if(Sec.pages[k] != pgg){
									cout << ", " << Sec.pages[k];
									pgg = Sec.pages[k];
								}
							}
							cout << endl;
						}
					}
				}
				break;
			}
			else{
				s += " ";
				int len = s.length();
				int plc = 0;
				while(plc < len){
					char c = s[plc];
					if(c == '&') {
						page++;
					}
					else if(c == '{'){
						tempIdxCont = "";
						hasPri = 0;
						hasSec = 0;
						inIdx = 1;
					}
					else if(c == '}'){
						inIdx = 0;
						int l = tempIdxCont.length();
						//处理这个index
						if(!hasPri && !hasSec){

							int first, last;
							for(first = 0; first < l; first++){
								if(tempIdxCont[first] != ' ') break;
							}
							if(first == l) continue;
							for(last = l-1; last >= 0; last--){
								if(tempIdxCont[last] != ' ') break;
							}
							tempIdxCont = tempIdxCont.substr(first, last-first+1);
							map<string, pri>::iterator it = priIdx.find(tempIdxCont);
							if(it == priIdx.end()){
								pri temp;
								temp.pages.push_back(page);
								priIdx.insert(pair<string, pri>(tempIdxCont, temp));
								priVec.push_back(tempIdxCont);
							}
							else{
								it->second.pages.push_back(page);
							}
						}
						if(hasPri && !hasSec){
							int bfhP;
							for(bfhP = 0; bfhP < l; bfhP ++){
								if(tempIdxCont[bfhP] == '%') break;
							}
							int first = bfhP+1, last = l-1;
							while(tempIdxCont[first] == ' ') first++;
							while(tempIdxCont[last] == ' ') last--;
							tempIdxCont = tempIdxCont.substr(first, last-first+1);
							map<string, pri>::iterator it = priIdx.find(tempIdxCont);
							if(it == priIdx.end()){
								pri temp;
								temp.pages.push_back(page);
								priIdx.insert(pair<string, pri>(tempIdxCont, temp));
								priVec.push_back(tempIdxCont);
							}
							else{
								it->second.pages.push_back(page);
							}
						}
						if(hasSec){
							string priStr = "", secStr = "";
							if(!hasPri){
								int dP;
								for(dP = 0; dP < l; dP ++){
									if(tempIdxCont[dP] == '$') break;
								}
								int first = 0, last = dP-1;
								while(tempIdxCont[first] == ' ') first++;
								while(tempIdxCont[last] == ' ') last--;
								priStr = tempIdxCont.substr(first, last-first+1);
								first = dP+1, last = l-1;
								while(tempIdxCont[first] == ' ') first++;
								while(tempIdxCont[last] == ' ') last--;
								secStr = tempIdxCont.substr(first, last-first+1);
							}
							else{
								int dP, dBFH;
								for(dP = 0; dP < l; dP ++){
									if(tempIdxCont[dP] == '$') break;
								}
								for(dBFH = 0; dBFH < l; dBFH++){
									if(tempIdxCont[dBFH] == '%') break;
								}
								int first = dBFH+1, last = dP-1;
								while(tempIdxCont[first] == ' ') first++;
								while(tempIdxCont[last] == ' ') last--;
								priStr = tempIdxCont.substr(first, last-first+1);
								first = dP+1, last = l-1;
								while(tempIdxCont[first] == ' ') first++;
								while(tempIdxCont[last] == ' ') last--;
								secStr = tempIdxCont.substr(first, last-first+1);
							}
							map<string, pri>::iterator it = priIdx.find(priStr);
							if(it == priIdx.end()){
								priVec.push_back(priStr);
								pri temp;
								sec tmp;
								tmp.pages.push_back(page);
								temp.secVec.push_back(secStr);
								temp.secIdx.insert(pair<string, sec>(secStr, tmp));
								priIdx.insert(pair<string, pri>(priStr, temp));
							}
							else{
								pri& thisPri = it->second;
								map<string, sec>::iterator itt = thisPri.secIdx.find(secStr);
								if(itt == thisPri.secIdx.end()){
									sec tmp;
									tmp.pages.push_back(page);
									thisPri.secIdx.insert(pair<string, sec>(secStr, tmp));
									thisPri.secVec.push_back(secStr);
								}
								else{
									sec& thisSec = itt->second;
									thisSec.pages.push_back(page);
								}
							}
						}
					}
					else if(inIdx){
						tempIdxCont += c;
						if(c == '%') hasPri = 1;
						if(c == '$') hasSec = 1;
					}
					plc++;
				}
			}
		}
		docuNo ++;
	}
	return 0;
}