Task: Pos Tagging
Input (English): Sentence: {{ When }} the Achaeans entertained Wednesday last at their annual Carnival masquerade ball , Miss Margaret Pierson was chosen to rule over the festivities , presented at the Muncipal Auditorium and chosen as her ladies in waiting were Misses Clayton Nairne , Eleanor Eustis , Lynn Chapman , Irwin Leatherman of Robinsonville , Miss. and Helene Rowley . 
Word: When
Output (English): ADV