小南解题--新生舞会--162ms

n=int(input())

aa=[]

bb=[]

cc=[]

for i in range(n):

    a,b,c=map(str,input().split())

    aa.append(a)

    bb.append(b)

    cc.append(c)

m=int(input())

for j in range(m):

    d,e=map(str,input().split())

    if d  in aa:

        k=aa.index(d)

    else:

        k=bb.index(d)

    if e  in aa:

        l=aa.index(e)

    else:

        l=bb.index(e)

    if cc[k]!=cc[l]:

        print('Y')

    else:

        print('N')