#include <stdio.h>
#include <string.h>

int main() {
	int n,m;
	double kurz[200][200];
	int i, j, k;
	int counter;
	char curr[200][4];	
	char buf1[4], buf2[4];
	int k1, k2, c1, c2;
	int arb;
	while(1) {
		for (i = 0; i < 200; i++) {
			for(j = 0; j < 200; j++) kurz[i][j] = 0.0;
		}
		arb = 0;
		counter = 0;
		scanf("%d", &m);
		if (m == 0) return 0;
		for (i = 0; i < m; i++) scanf("%s", curr[i]);
		scanf("%d", &n);
		for (j = 0; j < n; j++) {
			scanf("%s %s %d:%d", buf1, buf2, &k1, &k2);
			for (i=0;i<n;i++) {
				if (strcmp(curr[i], buf1)==0) {
					c1 = i;
					break;
				}
			}
			for (i=0;i<n;i++) {
				if (strcmp(curr[i], buf2)==0) {
					c2 = i;
					break;
				}
			}
			kurz[c1][c2]=((double)k1)/((double)k2);	
		
			
			
		}
		for (i = 0; i < m; i++) {
			for(j = 0; j < m; j++) {
				if(kurz[i][j] != 0 && kurz[j][i] != 0 && kurz[i][j] < 1/kurz[j][i])
										
					arb = 1;
			}
		}
		if(arb) {
			printf("Arbitrage\n");
			continue;
		}
/*printf("PASS 1: ");*/
		for (i = 0; i < m; i++) {
			for(j = 0; j < m; j++) {
				for (k = 0; k < m; k++) {
					if(kurz[i][j] != 0 && kurz[k][i] != 0  && kurz[j][k] != 0 && 
						kurz[i][j] * kurz[j][k] != 1/kurz[k][i]) {
					/*printf("SET i j k %d %d %d : ", i, j, k);	*/				
					arb = 1;
					}
				}
			}
		}
		if(arb) {
			printf("Arbitrage\n");
		}
		else {
			printf("Ok\n");
		}
	}
	return 1;
}