Definition: You are given a sentence and a question in the input. If the information provided in the sentence is enough to answer the question, label "Yes", otherwise label "No". Do not use any facts other than those provided in the sentence while labeling "Yes" or "No". There are only two types of valid responses: Yes and No.
Input: Sentence: Kathmandu valley has had this art treasure for a very long time, but received worldwide recognition only after the country opened to the outside world in 1950. 
Question: In what year could Nepal be said to have been discovered by the outside world?

Yes.