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's trade is an ancient profession that flourished along an offshoot of the Silk Road which linked India and Tibet. 
Question: Existing between what two countries contributed to Kathmandu becoming a center of trade?

Yes.