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: The kings of this period directly influenced or involved themselves in the construction of public buildings, squares, and temples, as well as the development of water spouts, the institutionalization of trusts (called guthis), the codification of laws, the writing of dramas, and the performance of plays in city squares. 
Question: In the waning years of the Malla dynasty, what fortified cities existed in the Kathmandu Valley?

No.