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'.

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

Context: Created by screenwriters Ted Elliott and Terry Rossio, Fiona is loosely based on the unsightly princess in William Steig's children's book Shrek! Link Information: Steig, later, when he was 61, began writing children's books. Question: How many books has the author of the children's book that inspired the character of Princess Fiona written?
Answer: more than 30

Context: He travelled to the West Indies in 1939 Link Information: He travelled to the West Indies in 1939 Question: How long had the Great Western Railway been in existence for the year Morris went to the West Indies?

Answer: 106