Q: In this task, you are given a sentence and question which can be answered using the sentence. Your task is to answer the question using the information from the sentence. The answer to the question is unique and it is a continuous text span from the sentence.
Sentence: Digging in south of Bologna for the winter , the 34th jumped off , 15 April 1945 , and captured Bologna on 21 April . 
 Question: when was something captured?
A:
21 April