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: Who is the commanding officer of the Black Watch when Evans was a second lieutenant? Passage:Following a year at Sandhurst, Evans entered the British Army with a commission in the Black Watch as second lieutenant on 23 December 1899, and served with the 2nd battalion in the Second Boer War in South Africa. He took part in operations in the Orange Free State February to May 1900, including the battles of Poplar Grove, Driefontein and Vet River; operations in the Transvaal May-June 1900, including the actions around Johannesburg, the occupation of Pretoria and the battle of Diamond Hill; and the battle of Battle of Belfast (August 1900). After the end of the conventional war he served with his battalion in the Orange River Colony during the Boer guerrilla warfare until peace was declared in June 1902. Following the end of the war in South Africa he left Point Natal for British India on the SS Ionian in October 1902 with other officers and men of his battalion, which after arrival in Bombay was stationed in Sialkot in Umballa in Punjab.. After service with his regiment in India, Evans returned to England and obtained a pilot's certificate.


b