TASK DEFINITION: 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.
PROBLEM: Context : The South Eastern and Chatham Railway (SECR) H Class is a class of 0-4-4T steam locomotive originally designed for suburban passenger work, designed by Harry Wainwright in 1904. 
Answer : 1904

SOLUTION: What year was South Eastern and Chatham Railway commissioned?

PROBLEM: Context : Searchers 2.0 is a 2007 road film directed by Alex Cox. 
Answer : Alex Cox

SOLUTION: Who id the director for Searchers 2.0?

PROBLEM: Context : After Bitcoin and Ethereum, Litecoin is the third-largest true cryptocurrency by market capitalization. 
Answer : Bitcoin

SOLUTION:
Which is the basis of Litecoin?