In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
--------
Question: Context: the Japanese government again dispatched Un'yo in September 1875 under the command of Inoue Yoshika to provoke a military response Link Information: none Question: How long did Yoshika command Un'yo?

Answer: Answer: none

Question: Context: Minaj was one of the opening acts on Britney Spears' 2011 Femme Fatale Tour. Link Information: Opening acts.- Nicki Minaj
- Jessie and the Toy Boys
- Nervo
- DJ Pauly D
- Joe Jonas
- Destinee & Paris
- The Wanted
- Howie Dorough
- Teen Angels Question: Who were the opening acts on Britney Spoears' 201 Femme Fatale Tour?

Answer: Answer: - Nicki Minaj
- Jessie and the Toy Boys
- Nervo
- DJ Pauly D
- Joe Jonas
- Destinee & Paris
- The Wanted
- Howie Dorough
- Teen Angels

Question: Context: In October 1952, fighting around the Red River Delta spread into the Thai Highlands, resulting in the Battle of Na San, at which the Viet Minh were defeated. Link Information: On 23 November at 20:00 Viet Minh forces from the 88/308 twice attacked at P.A. 8 and were twice pushed back by the entrenched Franco-Vietnamese troops.

From 24 to 30 November Viet Minh forces made night attacks Question: How long did the battle around the Red River Delta where colonial French forces defeated the Viet Minh last?

Answer:
Answer: 10