The family is one of nature's masterpieces. Sister is probably the most competitive relationship within the family, but once the sisters are grown, it becomes the strongest relationship. Neither man nor woman is perfect or complete without the other. Thus, no marriage or family, no ward or stake is likely to reach its full potential until husbands and wives, mothers and fathers, men and women work together in unity of purpose, respecting and relying upon each other's strengths. Father, mother ,sister, brother and relatives are good relationship.