Given the task definition and input, reply with output. 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.

Question: In what country were the earthquakes that caused the postponement of the race in which Oliver Turvey had a Super GT commitment? Passage:There was one driver change heading into the race. Having been in one of the Aguri cars since the first round of the season in Beijing, Antonio Felix da Costa missed the ePrix because of a Deutsche Tourenwagen Masters commitment at the Red Bull Ring and was replaced by endurance racing driver Rene Rast. The deal was confirmed in the week before the race and was originally slated to be World Endurance Championship driver Adam Carroll but the agreement fell apart. It marked Rast's first participation in single-seater machinery since the Formula BMW ADAC in 2004 and practised on the team's simulator to familiarise himself with the car. Oliver Turvey was set to be replaced by the Formula Renault 3.5 driver Ben Hanley because of a Super GT commitment at the Autopolis circuit, but that race was postponed because of the Kumamoto earthquakes, and his Formula E seat was reinstated.
b