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.

Example Input: Sentence: `` American Guru : A Story of Love , Betrayal and Healing '' , by William Yenner and other former Cohen student contributors , allege authoritarianism , financial manipulation , physical and psychological abuse in Cohen 's community , and discusses the challenges of healing after leaving the community . 
 Question: what was  alleged?
Example Output: authoritarianism , financial manipulation , physical and psychological abuse in Cohen 's community

Example Input: Sentence: As ex-slaves risked beatings for failing to meet the continuing duties , their freedom was limited . 
 Question: who might  fail  to do something?
Example Output: ex-slaves

Example Input: Sentence: Having finished his apprenticeship with Hammond , Keats registered as a medical student at Guy 's Hospital and began studying there in October 1815 . 
 Question: who   registered  as something?
Example Output:
Keats