You will be given a context and a verb separated with a newline character. You have to identify if the given verb implies an opinion, an intention, a wish or not. Please note that a verb refers to an intention only if it refers to an event planned to happen in the future and is not conditional (or part of a condition). The output should be: 'Yes' if the verb refers to an opinion, an intention, or a wish; and 'No' otherwise.
Q: The struggle must not stop for one minute !  said the message, read during the rally of several thousand Cuban scientists by Hassan Perez, president of the government's University Students Federation. Cuba appealed to world opinion, and American opinion in particular, to help prevent its enemies in Miami from (trying) to block the child's return.  
 Verb: trying
A: 
Yes