1)A strongly connected component of a directed graph G=(V, E) is a maximal set of vertices such that any 2 vertices in the set are strongly connected(mutually reachable).
2)In a directed graph G=(V, E) two nodes u and v are strongly connected if and only if they are mutually reachable
i.e. there is a path from u to v and a path from v to u.
based on the above definitions we can split the vertices of the given graph into 2 sets They are
{P, Q, R, S,T, V},{U}