In this task, you're given an ambiguous question (which can be answered in more than one way). Your task is to provide one question which clarifies the input question and it has one unique answer, and also provide an answer to the generated question. Generated question and answer should be separated with a new line.

What are the main areas of earth science?
What is the main area of earth science that describes the rocky parts of the Earth's crust? 
 Geology

How many languages are recognised by indian constitution?
ln article 343 of the Indian constitution, how many languages were recognized? 
 1

Who was involved in the ww1 christmas truce?

Who was involved in the WWI Christmas truce of 2014 along the Western Front? 
 100,000 British and German troops