What is the next dialog turn? CONVERSATION:Conversation:
[a]. Who is Federico Elduayen?;
[b]. Federico Elduayen Federico Martín Elduayén Saldaña (born June 25, 1977) is an Uruguayan football former goalkeeper who played for Universitario de Sucre in the Liga de Fútbol Profesional Boliviano.;
[a]. Are there any other interesting aspects about this article?;
[b]. His nickname is ""Vikingo"" (Viking).;
[a]. What happened in his early years?;
[b]. He began his career in the youth squads of Peñarol.;
[a]. Did he play for any other teams?;
[b]. He made his professional debut in 1999, in the Copa Mercosur defending Peñarol against Vasco Da Gama in Brazil.;
[a]. What happened in his middle years?;
[b]. Elduayén participated in six straight Copa Libertadores editions with Peñarol from 2000–2005. He was the team's starting goalkeeper until 2005 when he lost his job and moved to Universidad de Concepción in Chile.;
[a]. Did he play for any other teams after that?;
[b]. 
Ever since joining the Chilean side he became the starting goalkeeper there.