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#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <cmath>
#include <cassert>
#include <cstring>
#include <bitset>
#include <sstream>
//#include <bits/stdc++.h>
#include <ext/numeric>
using namespace std ;
using namespace __gnu_cxx ;
typedef long long LL ;
typedef pair<int,int> PII ;
typedef vector<int> VI ;
const int INF = 1e9+100 ;
const LL INFLL = (LL)INF*INF ;
#define REP(i,n) for(int i=0;i<(n);++i)
#define ALL(c) c.begin(),c.end()
#define FOREACH(i,c) for(auto i=(c).begin();i!=(c).end();++i)
#define CLEAR(t) memset(t,0,sizeof(t))
#define PB push_back
#define MP make_pair
#define FI first
#define SE second

template<class T1,class T2> ostream& operator<<(ostream &s, const pair<T1,T2> &x) { return s << "(" << x.FI << "," << x.SE << ")" ;}
template<class T>           ostream& operator<<(ostream &s, const vector<T>   &t) { FOREACH(it, t) s << *it << " " ; return s ; }
template<class T>           ostream& operator<<(ostream &s, const set<T>      &t) { FOREACH(it, t) s << *it << " " ; return s ; }
template<class T1,class T2> ostream& operator<<(ostream &s, const map<T1, T2> &t) { FOREACH(it, t) s << *it << " " ; return s ; }

template<class T1, class T2> T1 conv(const T2 &x) {
	stringstream sss ; sss << x ; T1 y ; sss >> y ; return y ;
}

template<class T> void _debug(bool printName, const char* s, const T &x) { if(printName) cerr << s << "=" ; cerr << x << endl ; }
void _debug(bool, const char* s, const char*) {
	for(;*s;s++) if(*s!='"') { cerr << *s ; } cerr << endl ;
}
template<class T, class... R> void _debug(bool printName, const char* s, const T &x, R... y) {
	bool o=0, str=(*s=='"') ;
	for(; o || *s!=',' ; s++) if(*s=='"') o=!o ; else if(printName||str) cerr<<*s ;
	for(s++;*s && *s==' '; s++) ;
	if(!str) { if(printName) cerr << "=" ; cerr << x ; if(*s!='"' && printName) cerr << "," ; } cerr << " " ;
	_debug(printName, s, y...) ;
}

template<class T>             void _coord(const T &x)         { cerr << "[" << x << "]" ;             }
template<class T, class... R> void _coord(const T &x, R... y) { cerr << "[" << x << "]" ; _coord(y...) ; }

template<class T, class I>             void _val(T &t, const I &i)         { cerr << t[i] ; }
template<class T, class I, class... J> void _val(T &t, const I &i, J... j) { _val(t[i], j...) ; }

#ifndef LOCAL
	#define CERR(...)
	#define DEBUG(...)
	#define DARRAY(...)
	#define DFLAG 0
#else
	#define CERR(...)     if(DFLAG) _debug(0, #__VA_ARGS__, __VA_ARGS__)
	#define DEBUG(...)    if(DFLAG) _debug(1, #__VA_ARGS__, __VA_ARGS__)	
	#define DARRAY(t,...) if(DFLAG) { cerr << #t ; _coord(__VA_ARGS__) ; cerr << " = " ; _val(t,__VA_ARGS__) ; cerr << endl ; }
	#define DFLAG 0
#endif

////////////////////////////////////////////////////////////////////////////////

const int MAXN = 1100 ;
set<int>    likes[MAXN] ;   // kogo lubimy
      VI revLikes[MAXN] ;   // kto nas lubi
VI   hates[MAXN] ;          // kogo nienawidzimy
int haters[MAXN] ;          // ilu nas nienawidzi

int groups[MAXN] ;          // kolorowanie grafu (wyznaczajace podzial firmy)
int nextGroupId=1 ;

bool ERROR=false ;
int ret[MAXN] ;             // wynik

VI newGroup(int u, int newGroupId) {
	VI ret = {u} ;
	groups[u] = newGroupId ;
	for(int i=0 ; i<ret.size() ; i++) {
		u = ret[i] ;
		FOREACH(it, revLikes[u])
			if(groups[*it]!=newGroupId) {
				ret.PB(*it) ;
				groups[*it] = newGroupId ;
			}
		FOREACH(it, likes[u])
			if(groups[*it]!=newGroupId) {
				ret.PB(*it) ;
				groups[*it] = newGroupId ;
			}
	}
	return ret ;
}

void reorgenize(const VI &company, int boss) {
	FOREACH(it, company) {
		if(haters[*it]==0 && likes[*it].empty()) {
			ret[*it] = boss ;
			
			CERR(company, " -> ", *it) ;
			
			FOREACH(who, revLikes[*it])     // czyscimy krawedzie w grafie od nowego korzenia
				likes[*who].erase(*it) ;
			revLikes[*it].clear() ;
			
			vector<VI> partitions ;         // robimy podzial
			FOREACH(it2, company) {
				if(*it2 != *it && groups[*it2]==groups[*it])
					partitions.PB(newGroup(*it2, nextGroupId++)) ;
			}
			
			DEBUG(partitions) ;
			
			FOREACH(a, company)	            // usuwamy haterow z innej grupy
				for(int j=0 ; j<hates[*a].size() ; ) {
					int b = hates[*a][j] ;
					if(groups[*a]!=groups[b]) {
						DEBUG(*a, "przestaje nie lubic", b) ;
						swap(hates[*a][j], hates[*a].back()) ;
						hates[*a].pop_back() ;
						haters[b]-- ;
					}
					else j++ ;
				}
			
			FOREACH(partition, partitions) {
				reorgenize(*partition, *it) ;
				if(ERROR) return ;
			}
			return ;
		}
	}
	ERROR=true ;
	CERR("error for ", company) ;
}

// Dodatkowy kod do sprawdzania poprawnosci
vector<PII> T, N ;
bool CHECK_CORRECTNESS=false;//true ;

int main()
{
	ios_base::sync_with_stdio(0) ;
	int n, m, a, b ;
	cin >> n >> m ;
	char c ;
	while(m--) {
		cin >> a >> b >> c ;
		if(c=='T') {
			likes[a].insert(b) ;
			revLikes[b].PB(a) ;
			
			if(CHECK_CORRECTNESS)
				T.PB(MP(a,b)) ;
		}
		else if(c=='N') {
			hates[a].PB(b) ;
			haters[b]++ ;
			
			if(CHECK_CORRECTNESS)
				N.PB(MP(a,b)) ;
		}
		else assert(false) ;
	}
	
	memset(ret, -1, sizeof(ret)) ;
	VI company ;
	REP(i, n) company.PB(i+1) ;
	reorgenize(company, 0) ;
	
	if(ERROR) cout << "NIE" << endl ;
	else {
		assert(count(ret+1,ret+n+1, -1)==0) ;
		REP(i, n) cout << ret[i+1] << endl ;
		//cout << "TAK" << endl ;
		
		if(CHECK_CORRECTNESS) {
			//cerr << "sprawdzam" << endl ;
			VI *parents = new VI[n+1] ;
			for(int u=1 ; u<=n ; u++) {
				int a=ret[u] ;
				while(a!=0) {
					parents[u].PB(a) ;
					a=ret[a] ;
				}
				sort(ALL(parents[u])) ;
			}
			FOREACH(it, T)
				assert( binary_search(ALL(parents[it->FI]), it->SE)) ;
			FOREACH(it, N)
				assert(!binary_search(ALL(parents[it->FI]), it->SE)) ;
			
			delete [] parents ;
		}
	}
}