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: What type of organisms usually form the rock that the original 1857 asylum building is made from? Passage:The original 1857 asylum building (now the Nowotny Building) is a two-story Italianate structure of rough limestone with red brick detailing. The main facade features five sets of paired windows with limestone sills framed in brick and topped with brick segmental arches. The corners are reinforced with brick quoins, and a wide first-story portico extends to both sides of the main entry. A brick cornice marks the roofline, above which the gray metal roof is punctuated by an octagonal Italianate dome. The building was designed and built by Abner H. Cook, an Austin architect who had recently designed the Texas Governor's Mansion.


b