In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.

Example Input: passage: There are perhaps three hundred sign languages in use around the world today. The number is not known with any confidence; new sign languages emerge frequently through creolization and de novo (and occasionally through language planning). In some countries, such as Sri Lanka and Tanzania, each school for the deaf may have a separate language, known only to its students and sometimes denied by the school; on the other hand, countries may share sign languages, though sometimes under different names (Croatian and Serbian, Indian and Pakistani). Deaf sign languages also arise outside educational institutions, especially in village communities with high levels of congenital deafness, but there are significant sign languages developed for the hearing as well, such as the speech-taboo languages used in aboriginal Australia. Scholars are doing field surveys to identify the world's sign languages.
 question: does sign language vary from country to country?
Example Output: Yes

Example Input: passage: The show is often famed as having been the place that record producer Simon Cowell made his television debut. The video (of his appearance on the 1989 version) is available on YouTube and extracts of it were shown during the National Television Awards whilst Cowell was receiving the Lifetime Achievement Award. Cowell appeared on 2 episodes (winning his first game) and won only £20 worth of cooking utensils.
 question: did simon cowell won sale of the century?
Example Output: No

Example Input: passage: The return address is not required on postal mail. However, lack of a return address prevents the postal service from being able to return the item if it proves undeliverable; such as from damage, postage due, or invalid destination. Such mail may otherwise become dead letter mail.
 question: do i have to put my name on the return address?
Example Output:
No