Eight people are sitting in two parallel rows with 4 people each in such a way that there is equal distance between adjacent persons and they are facing each other.
In row I - L, M, N and O are seated and all of them are facing south.
In row II - P, Q, R and S are seated and all of them are facing north.
N sits next to the person at the extreme right end of their row and is facing R. S sits at the extreme left end of their row.
Q sits to the immediate right of R and is facing L. O sits at the extreme left end of their row.
Who sits at the extreme right end of the row of people facing South?