i,s=int,lambda _=0:input().split() o=s() l=dict(map(s,[0]*i(o[7]))) while 1:f,p,d=s();print(["WAIT","BLOCK"][(i(p)-i([o[4],l.get(f,0)][f<o[3]]))*("RNL".index(d[0])-1)<0])