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: Which of the actresses who played Tina Mahon is older? Passage:Father Paolo Baldi (David Threlfall) is a priest torn between his interest in investigation and detective work, and the secluded life of a priest. On sabbatical from the Franciscan Order, he takes up amateur sleuthing and befriends DI Tina Mahon (Tina Kellegher for the first four series, then Tara Flynn), a member of the Gardaí. Both her superior, DS Rynne (Owen Roe), and Baldi's spiritual director, Father Troy (T. P. McKenna), would prefer that he end his sabbatical and return to the Order. Father Baldi has an unfortunate knack of becoming involved in murder enquires, usually by his friendship with one of those involved. His gentle, reassuring behaviour and the Seal of the Confessional encourages participants to open up to him.


a