Definition: 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.
Input: Context: Marks of Identity (Spanish: Senas de identidad) is a 1966 novel by the Spanish writer Juan Goytisolo. 
 Question: Who was the auther of Marks of Identity?
Output:
juan goytisolo