How many females are there in the family?

Study the following information carefully and answer the questions given below: L, M, N, O, P, Q and R are seven family members sitting around a circular table facing the centre. There are two married couples, two sons and two daughters in the family. O sits third to the right of her grandson. R is the son of N and father of
M. Q sits second to the right of her mother but is not an immediate neighbour of her father. P sits third to the left of her only daughter but is not an immediate neighbour of her husband. O is grandmother of
L. L is not granddaughter of N, who is an immediate neighbour of his wife.