Task: Pos Tagging
Input (English): What is the part-of-speech tag of the word "of" in the following question: Which class name is a higher number numerically ? A type of submarines which was produced in 1941 until 1943 for the US Navy , or a pair of medium-sized submarines of the United States Navy that was restricted by the tonnage limits of the London Naval Treaty of 1930 ?
Output (English): IN