Task: Pos Tagging
Input (English): What is the part-of-speech tag of the word "a" in the following question: The town that was first incorporated in 1964 , but later changed to an urban service area , had a severe wildfire , in what year , that led to the evacuation of its residents and caused widespread damage , which is located right in the middle of the Athabasca oil sands ?
Output (English): NNS