There are 7 children in someone's house, from big to small: A. B, C, D, E, F, G, A have three sisters; B has an older brother; C is a girl, she has two sisters; D has Two younger brothers; F is also a girl. It can be inferred from this:. ['A is a girl.', 'B is a girl.', 'D is a boy.', 'E is a boy.']