Question: Was the 9th FINA Swimming World Championships (25 m) held in an indoor or outdoor arena?

Related documents: [0]  [DOC] The 9th FINA Swimming World Championships (25 m) were held at the Manchester Arena, in Manchester, United Kingdom 9-13 April 2008. [END] 
[1]  [DOC] The Manchester Arena is an indoor arena in Manchester, England, immediately north of the city centre and partly above Manchester Victoria station in air rights space. [END]  
Answer: an indoor arena
an indoor arena