Teacher:Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Teacher: Now, understand the problem? Solve this instance: Context : The Battle of Paju (Estonian: Paju lahing) was fought in Paju, near Valga, Estonia, on 31 January 1919 during the Estonian War of Independence.
Answer : 31 January 1919
Student:
What is the date when Battle of Paju happened?