Study the following information carefully to answer the given questions. Ten persons i.e., M, N, O, P, Q, R, S, T, U and V live in two different flats...

Study the following information carefully to answer the given questions.
Ten persons i.e., M, N, O, P, Q, R, S, T, U and V live in two different flats (but not necessarily in the same order)
viz. Flat A and Flat B of a five-floor building such that the lowermost floor is numbered as 1 and the floor
just above it is numbered as 2 and so on till the topmost floor is numbered as 5. Flat A is to the west of flat
B whereas flat A of floor 2 is immediately above flat A of floor 1 and flat B of floor 2 is immediately above
flat B of floor 1 and so on.
Two floors gap between U and V who lives below U’s floor. U lives on an odd numbered floor and lives just
to the north- west of R. R lives three floors above P. S lives on the same floor as P but not in flat A. M lives
on an even numbered floor and lives in the north- west N. N doesn’t live on odd numbered floor. Q lives
below O in the same named flat as P.

Question:

Four of the following five persons belong to a group based on a certain pattern. Identify the person who does not belong to the group: