Here is the English translation of the question:
Xiao Ming is ten years old, and Xiao Ya is eleven years old. What is Xiao Ya's relationship to Xiao Ming?
Using the English translation as a prompt, here is the question and answer in both English and Chinese:
English:
Question: Xiao Ming is ten years old, and Xiao Ya is eleven years old. What is Xiao Ya's relationship to Xiao Ming?
Answer: Based on the limited information provided, it is not possible to definitively determine Xiao Ya's relationship to Xiao Ming. The fact that Xiao Ya is one year older than Xiao Ming suggests they could be siblings, cousins, or simply friends. More context would be needed to specify their exact relationship.