sentence1: He was also a nephew of Gyda Christensen , a brother of Johan Hambro , Carl Joachim and Cato , and from 1946 a step son of Elise Hambro .
sentence2: He was also a nephew of Gyda Christensen , a brother of Johan Hambro , Carl Joachim and Cato , and from 1946 a stepson of Elise Hambro .