Definition: Generate a correct and concise answer for the question based on the words in the context.

Positive Example 1 -
Input: Context : Isaac Nicola Romero (1916 in Havana, Cuba -- 1997) was a prominent Cuban guitarist and one of the founders of the modern Cuban Guitar School. 
Question : What was Isaac Nicola's city of birth?
Output: Havana

Positive Example 2 -
Input: Context : Tweetie Pie won the Academy Award for Best Animated Short Film, breaking Tom and Jerry's streak of four consecutive wins on the category. 
Question : What award was Tweetie Pie nominated for?
Output: Academy Award for Best Animated Short Film

Negative Example 1 -
Input: Context : An Officer and a Gentleman is a 1982 American drama/romance film that stars Richard Gere, Debra Winger and Louis Gossett, Jr., who won the Academy Award for Best Supporting Actor for the film, and was produced by Lorimar Productions for Paramount Pictures. 
Question : What award was An Officer and a Gentleman nominated for?
Output: 1982

Negative Example 2 -
Input: Context : Travis Hamonic (born August 16, 1990) is a Canadian professional ice hockey defenseman currently playing for the New York Islanders of the National Hockey League (NHL). 
Question : What team does Travis Hamonic belong to?
Output: Boston Bruins

Now complete the following example -
Input: Context : ISO 3166-2:PR is the entry for Puerto Rico in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1. 
Question : Who set the standards for ISO 3166-2:PR?
Output: International Organization for Standardization