Based on the given question and tppic, give an answer. The answer is available on on the internet. The questions are mostly centered around a single named entity.

Input: Consider Input: concept: Russia  question:  what were the causes of the russian revolution in 1917?

Output: ['World War I']


Input: Consider Input: concept: Ladainian Tomlinson  question:  what team does ladainian tomlinson play 4?

Output: ['San Diego Chargers', 'New York Jets']


Input: Consider Input: concept: Persian Language  question:  who speaks farsi?


Output: ['Canada', 'Afghanistan', 'Iran', 'Oman', 'Uzbekistan', 'Bahrain', 'Iraq', 'Tajikistan']