1 John is Harry`s son, he is
Margaret`s son too. 2 Harry is Margaret`s husband. 3 John is Sally`s brother. 4
Sally is Harry`s daughter, she is Margaret`s daughter too. 5 Harry and Margaret
are John`s parents, they are Sally`s parents too. 6. Sally is John`s sister. 7
Margaret is Harry`s wife. 7 Sally and John are Harry`s children, they are
Margaret`s children too.