Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

Example Input: Context: Amazonis Planitia is one of the smoothest plains on Mars. 
 Question: On what celestial body is Amazonis Planitia located?
Example Output: mars

Example Input: Context: Feia Lacus is one of a number of hydrocarbon seas and lakes found on Saturn's largest moon, Titan. 
 Question: What celestial body can Feia Lacus be found on?
Example Output: titan

Example Input: Context: A Woman Drinking with Two Men is a 1658 painting by Pieter de Hooch, an example of Dutch Golden Age painting and is part of the collection of the National Gallery, London. 
 Question: What is the name of the place where A Woman Drinking with Two Men can be found?
Example Output:
national gallery