Answer the questions based on the information given below. There are nine persons G, H, I, J, K, L, M, N and O are in a family of three generations. No single person in the family is parent. The one, who is married to L is the father of J. J's sister is married to O. M is the son-in-law of G. M's spouse has a brother. I is the aunt of K's mother. K has a brother-in-law. N is not female. The gender of H and J is different. H is not the granddaughter of I's sister. How is G related to J?