#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")

#define rd_skip_line() while(*rp++!=10)
#define rd() ({int _v=0,_c;while(_c=*rp++-48,_c>=0)_v=_v*10+_c;_v;})
#define wt(v) ({unsigned _z=v;do*--wp=_z%10+48;while(_z/=10);})
#define rep(v,e) for(long v=0;v<e;++v)
#define aaa(x) ({int r=x;r-(r<MD?0:MD);})
#define MD 998244353

unsigned d[1000];

#define MASK 0x3fffff
char b[MASK+1];

int main(){
	char*mmap();
	char*rp=mmap(0l,1l<<25,1,2,0,0ll);
	long n=rd();
	rd_skip_line();
	unsigned x=1;
	while(*rp){
		long l=rd();
		rep(i,l){
			long a=rd()-1;
			d[a]+=x;
		}
		x*=3;
	}
	int z=1;
	rep(a,n){
		long y=d[a]&MASK;
		if(!b[y]){
			b[y]=1;
			z=aaa(z+z);
		}
	}

	char wbuf[64],*wp=wbuf+sizeof wbuf;
	wt(z);
	write(1,wp,wbuf+sizeof wbuf-wp);
	_exit(0);
}