TASK DEFINITION: You will be given a context, a subject and a relation. Your task is to generate a question based on the subject and relation. The generated question should include the given subject. Try to use a minimum number of words that are not present in either context, subject or relation while generating question.
PROBLEM: Context : Twofish was designed by Bruce Schneier, John Kelsey, Doug Whiting, David Wagner, Chris Hall, and Niels Ferguson; the ''extended Twofish team'' who met to perform further cryptanalysis of Twofish and other AES contest entrants included Stefan Lucks, Tadayoshi Kohno, and Mike Stay.
Subject : Twofish
Relation : based on

SOLUTION: Which is the basis of Twofish?

PROBLEM: Context : 5 Tauri (5 Tau) is a star in the constellation Taurus.
Subject : 5 Tauri
Relation : constellation

SOLUTION: Which constellation is 5 Tauri a part of?

PROBLEM: Context : The Battle of the Fischa or Battle of the Leitha took place on 11 September 1146 near the Fischa River at the border of the Kingdom of Hungary and the March of Austria, which belonged to the overlordship of the Dukes of Bavaria and it was ruled by margraves of the Franconian Babenberg dynasty.
Subject : Battle of the Fischa
Relation : point in time

SOLUTION:
What was the date of Battle of the Fischa?