What could you learn in four months?

It's four months until the general election on May 7th 2015.

The build-up to the election has already begun and in the 17 weeks of campaigning to follow, Radio 4's Today programme asked what else could be achieved in that time?

Jazz guitarist John Etheridge gives his suggestion of what you could learn in four months. Benny Lewis, author of "Fluent in 3 months", says the time frame is more than enough to learn a language and Amy Hughes, who broke the world record for running 53 marathons on consecutive days, says it's perfectly possible to train for a marathon in four months, as long as you following certain rules.