In this task, you're given a context, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both context and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the context or linked information.

Context: Nirvana insisted on signing an extended contract with Sub Pop, making the band the first to do so with the label. Link Information: The label's roster includes Fleet Foxes, Foals, Beach House, The Postal Service, Flight of the Conchords, Sleater-Kinney, Blitzen Trapper, Father John Misty, Shabazz Palaces, METZ, Rolling Blackouts Coastal Fever, and The Shins. Answer: Fleet Foxes, Foals, Beach House, The Postal Service, Flight of the Conchords, Sleater-Kinney, Blitzen Trapper, Father John Misty, Shabazz Palaces, METZ, Rolling Blackouts Coastal Fever, and The Shins.
What other bands signed with Sub Pop?

Context: the last Bulgarian Tsar Ivan Shishman Link Information: 

Ivan Shishman () ruled as emperor (tsar) of Bulgaria in Tarnovo from 1371 to 3 June 1395. Answer: 24
How long did the last Bulgarian Tsar rule the Empire?

Context: Dunstan became well known for his campaign against the death penalty being imposed on Max Stuart, who was convicted of rape and murder Link Information: none Answer: none

What was the name of the convicted rapist/murderer's mother that Don Dunstan advocated for?