In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as 'a' for Yes or 'b' for No.

Example input: Question: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin? Passage: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lo during July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
.
Example output: a
Example explanation: The passage describes the 704th's actions during Operation Market Garden so only information about the operation is needed.
Q: Question: What was the population of Lake Okeechobee during this time? Passage:Despite the perceived improbability of landfall in the days preceding the storm's passage, the West Palm Beach chapter of the American Red Cross began preparing for the storm. Dr. William J. Buck, likely the only doctor between Pahokee and Moore Haven and also president of the Belle Glade town council and the founder of the town's American Legion post, was skeptical of the Weather Bureau's predictions of the storm missing South Florida. He and his legionnaires warned residents in the Lake Okeechobee region of the approaching cyclone. At South Bay, Frank Schuster made several car trips to save 211people by transporting them to higher ground. The Seminoles at the Brighton Seminole Indian Reservation in Glades County evacuated to higher ground after observing retreating wildlife. Hours before the storm made landfall, many in the communities surrounding Lake Okeechobee either crowded into a house or evacuated to the building they believed was securest, such as the Belle Glade Hotel, the Glades Hotel, and Henry Martin's store in Belle Glade, with the Glades Hotel sheltering 20people and the Belle Glade Hotel having nearly 150refugees. About 500people in Lake Worth were sheltered inside the Gulf Stream Hotel during the storm. In West Palm Beach, food and thousands of candles, kerosene lamps, and boards were sold on September16. A number of residents boarded up their homes and then secured their ornamental trees and plants. At the building then being used as the Palm Beach County Courthouse, approximately 500people sought shelter inside. In Jupiter, 20people sought refuge in a grocery store, while 25others stayed at a newly constructed elementary school. A number of African Americans took shelter in a school building in West Jupiter.

A:
a