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: How many riverboat casinos did New Orleans have? Passage:Shreveport was once a major player in United States oil business, and at one time could boast Standard Oil of Louisiana as a locally based company. The Louisiana branch was later absorbed by Standard Oil of New Jersey. Beginning in 1930, United Gas Corporation, the nation's busiest pipeline operator and massive integrated oil company, was headquartered in Shreveport. Pennzoil performed a hostile takeover in 1968, and forced a merger. In the 1980s, the oil and gas industry suffered a large economic downturn. This affected all of the regional economy, and many companies cut back jobs or went out of business, including a large retail shopping mall, South Park Mall, which closed in the late 1990s. Its major facilities were adapted for use by Summer Grove Baptist Church. Shreveport suffered severely from this recession, and many residents left the area. Since that time, Shreveport has largely transitioned to a service economy. In particular, there has been rapid growth in the gaming industry. The city hosts various riverboat gambling casinos, and, before Hurricane Katrina in 2005, was second only to New Orleans in Louisiana tourism. Nearby Bossier City is home to one of the three horse racetracks in the state, Harrah's Louisiana Downs. Casinos in Shreveport-Bossier include Sam's Town Casino, Eldorado Casino, Horseshoe Casino, Boomtown Casino, Diamond Jacks Casino (formerly Isle of Capri), and Margaritaville Resort Casino. The Shreveport-Bossier Convention and Tourist Bureau is the official tourism information agency for the region. The bureau maintains a comprehensive database of restaurants, accommodations, attractions, and events.


b