Write a program which reads relations in a SNS (Social Network Service), and judges that given pairs of users are reachable each other through the network.
In the first line, two integer n and m are given. n is the number of users in the SNS and m is the number of relations in the SNS. The users in the SNS are identified by IDs 0,1,...,n−1.
In the following m lines, the relations are given. Each relation is given by two integers s and t that represents s and t are friends (and reachable each other).
In the next line, the number of queries q is given. In the following q lines, q queries are given respectively. Each query consists of two integers s and t separated by a space character.
For each query, print "yes" if t is reachable from s through the social network, "no" otherwise.
10 9 0 1 0 2 3 4 5 7 5 6 6 7 6 8 7 8 8 9 3 0 1 5 9 1 3
yes yes no