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#include<stdio.h>
#include<cstring>
#include<cstdlib>
#include<cmath>
#include<iostream>
#include<algorithm>
#include<vector>
#include<map>
#include<set>
#include<queue>
#include<bitset>
#include<utility>
#include<functional>
#include<iomanip>
#include<sstream>
#include<ctime>
#include<cassert>
using namespace std;
#define y0 y0z
#define y1 y1z
#define yn ynz
#define j0 j0z
#define j1 j1z
#define jn jnz
#define tm tmz
#define buli(x) (__builtin_popcountll(x))
#define bur0(x) (__builtin_ctzll(x))
#define bul2(x) (63-__builtin_clzll(x))
#define mp make_pair
#define pb push_back
#define fi first
#define se second
#define fil(a,b) memset((a),(b),sizeof(a))
#define cl(a) fil(a,0)
#define siz(x) ((int)(x).size())
#define all(x) (x).begin(),(x).end()
#define foreach(it,a) for(__typeof((a).begin()) it=(a).begin();it!=(a).end();it++)
#define rep(i,a,b) for (int i=(a),_ed=(b);i<_ed;i++)
#define per(i,a,b) for (int i=(b)-1,_ed=(a);i>=_ed;i--)
#define forg(i,gu) for (int i=gu;~i;i=e[i].next)
#define pw(x) ((ll(1))<<(x))
#define upmo(a,b) (((a)=((a)+(b))%mo)<0?(a)+=mo:(a))
#define mmo(a,b) (((a)=1ll*(a)*(b)%mo)<0?(a)+=mo:(a))
void getre(){int x=0;printf("%d\n",1/x);}
void gettle(){int res=1;while(1)res<<=1;printf("%d\n",res);}
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<pii> vpii;
template<typename T,typename S>inline bool upmin(T&a,const S&b){return a>b?a=b,1:0;}
template<typename T,typename S>inline bool upmax(T&a,const S&b){return a<b?a=b,1:0;}
template<typename N,typename PN>inline N flo(N a,PN b){return a>=0?a/b:-((-a-1)/b)-1;}
template<typename N,typename PN>inline N cei(N a,PN b){return a>0?(a-1)/b+1:-(-a/b);}
template<typename N>N gcd(N a,N b){return b?gcd(b,a%b):a;}
template<typename N>inline int sgn(N a){return a>0?1:(a<0?-1:0);}
#if ( ( _WIN32 || __WIN32__ ) && __cplusplus < 201103L)
#define lld "%I64d"
#else
#define lld "%lld"
#endif
inline void gn(long long&x){
	int sg=1;char c;while(((c=getchar())<'0'||c>'9')&&c!='-');c=='-'?(sg=-1,x=0):(x=c-'0');
	while((c=getchar())>='0'&&c<='9')x=x*10+c-'0';x*=sg;
}
inline void gn(int&x){long long t;gn(t);x=t;}
inline void gn(unsigned long long&x){long long t;gn(t);x=t;}
inline void gn(double&x){double t;scanf("%lf",&t);x=t;}
inline void gn(long double&x){double t;scanf("%lf",&t);x=t;}
inline void gs(char *s){scanf("%s",s);}
inline void gc(char &c){while((c=getchar())>126 || c<33);}
inline void pc(char c){putchar(c);}
#ifdef JCVB
#define debug(...) fprintf(stderr, __VA_ARGS__)
#else
#define debug(...)
#endif
typedef long long ll;
typedef double db;
inline ll sqr(ll a){return a*a;}
inline db sqrf(db a){return a*a;}
const int inf=0x3f3f3f3f;
const db pi=3.14159265358979323846264338327950288L;
const db eps=1e-6;
//const int mo=0;
//int qp(int a,ll b){int n=1;do{if(b&1)n=1ll*n*a%mo;a=1ll*a*a%mo;}while(b>>=1);return n;}

int n,m;
int vnex[11111],enex[11111];
int uu[11111],vv[11111],bo[11111];

const int TOT = 333333;
int qu[TOT],que[TOT];int p=0,q=0;void ins(int headv,int heade){
	qu[q]=headv;
	que[q++]=heade;
	if(q==TOT)q=0;
}
void pop(int &headv,int &heade){
	headv=qu[p];
	heade=que[p++];
	if(p==TOT)p=0;
}

int vlis[11111],elis[11111];
int tag[11111];int tms=0;

int fa[11111];
int gf(int x){
	return x==fa[x]?x:fa[x]=gf(fa[x]);
}
void un(int x,int y){
	fa[gf(x)]=gf(y);
}

int ans[11111];
int curhead[11111];
int ehead[11111];
bool work(int headv,int heade){
	int vtot=0,etot=0;
	int tmp=headv;
	while(tmp){
		vlis[++vtot]=tmp;
		tmp=vnex[tmp];
	}
	tmp=heade;
	while(tmp){
		elis[++etot]=tmp;
		tmp=enex[tmp];
	}

	tms++;
	rep(j,1,etot+1){
		if(bo[elis[j]])tag[uu[elis[j]]]=tms;
		else tag[vv[elis[j]]]=tms;
	}
	int rt=0;
	rep(i,1,vtot+1)if(tag[vlis[i]]!=tms){
		rt=vlis[i];
		break;
	}
	if(!rt)return 0;

	rep(i,1,vtot+1){
		fa[vlis[i]]=vlis[i];
		if(vlis[i]!=rt)ans[vlis[i]]=rt;
	}

	rep(j,1,etot+1){
		if(bo[elis[j]] && uu[elis[j]] != rt && vv[elis[j]] != rt)un(uu[elis[j]],vv[elis[j]]);
	}

	rep(i,1,vtot+1){
		if(vlis[i]==rt)continue;
		if(gf(vlis[i])==vlis[i]){
			curhead[vlis[i]]=vlis[i];
			ehead[vlis[i]]=0;
		}
	}
	rep(i,1,vtot+1){
		if(vlis[i]==rt)continue;
		int to=gf(vlis[i]);
		if(to!=vlis[i]){
			vnex[curhead[to]]=vlis[i];
			curhead[to]=vlis[i];
		}
	}
	rep(i,1,vtot+1){
		if(vlis[i]==rt)continue;
		if(gf(vlis[i])==vlis[i])vnex[curhead[vlis[i]]]=0;
		curhead[vlis[i]]=0;
	}
	rep(j,1,etot+1){
		int id=elis[j];
		if(uu[id]==rt||vv[id]==rt)continue;
		int bel=gf(uu[id]);
		if(bel!=gf(vv[id]))continue;
		if(curhead[bel]==0){
			ehead[bel]=curhead[bel]=id;
		}else{
			enex[curhead[bel]]=id;
			curhead[bel]=id;
		}
	}
	rep(i,1,vtot+1){
		if(vlis[i]==rt)continue;
		if(gf(vlis[i])==vlis[i]){
			enex[curhead[vlis[i]]]=0;
			ins(vlis[i],ehead[vlis[i]]);
		}
	}
	return 1;
}

int main()
{
	gn(n);gn(m);
	rep(i,1,m+1){
		gn(uu[i]);gn(vv[i]);
		char x;
		gc(x);
		bo[i]=(x=='T');
	}
	rep(i,1,n)vnex[i]=i+1;vnex[n]=0;
	rep(i,1,m)enex[i]=i+1;enex[m]=0;

	ins(1,1);
	while(p!=q){
		int u,e;
		pop(u,e);
		if(!work(u,e)){
			printf("NIE\n");
			return 0;
		}
	}
	rep(i,1,n+1)printf("%d\n",ans[i]);
	return 0;
}