Definition: In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Input: Question: Did either of the women Ellen defeat at the national track championships have children at the time? Passage:The first podium place for the team was a third place for Jaccolien Wallaard at Omloop Het Volk in March. In May Ellen van Dijk finished third at Omloop van Borsele and in the time trial stage at the Tour de l'Aude Cycliste Féminin. Van Dijk finished third again in an international time trial at the Tour of Chongming Island Time trial in June. The day afterwards Van Dijk won the first stage of the Tour of Chongming Island with Wallaard in third place. After finishing second in the stage 2 and stage 3 Van Dijk ended also second in the general classification. In July Ellen van Dijk represented the Netherlands at the European Championships (under-23) and finished fifth in the time trial. At the national championships Anita Valen won the time trial in Norway and finished second in the road race. In the Netherlands Ellen van Dijk won the Dutch time trial championships. Due to Van Dijks' good results in the time trials she was chosen to represent the Netherlands in the time trial at the World Championships in Stuttgart where she finished 17th. Due to her good results Ellen van Dijk became sportswomen of the year of Woerden. Van Dijk was invited to join the Dutch national track cycling team. At the national track championships she became Dutch champion in the individual pursuit, ahead of Marianne Vos and Kirsten Wild, and finished fourth in the scratch race and points race.


a