Definition: 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.
Input: Question: When did the person in charge of Arthur first achieve their rank? Passage:USS Sachem was originally commanded by Captain H. W. Morris, the former U.S. Navy commander of New Orleans, and was armed with one 20 lb (0.91 kg) parrott rifle and four 32 pounder (15 kg) cannons. The size of her crew was about fifty; she had also participated in several other historic naval engagements such as Hampton Roads and the Battle of Forts Jackson and St. Philip. Captain Morris is not believed to have fought in this battle. Lieutenant Amos Johnson commanded Sachem. Lieutenant John W. Kittredge was in charge of Arthur, which held over eighty men and was armed with six 32 pounder smooth-bore guns. Kittredge commanded the flotilla and Arthur was the flagship of the force. Corypheus mounted one 30 lb (14 kg) rifled gun and one 24 pounder (11 kg) howitzer. She had a crew of twenty-eight men and was commanded by Acting Master A. T. Spear. Bella Italias armament and crew are not known. Reindeer mustered six 24 pounder howitzers. Little is known of the Confederate ships.


a