She kept going, campaigning to overturn the amnesty and to bring the killings before the Inter-American Court of Justice.

ECONOMIST: María Julia Hernández | The

But he also saw how she kept on going, kept doing that same job year after year, without complaint or regret.

WHITEHOUSE: Remarks by the First Lady at a Campaign Event

Mrs Smith, who had already cycled from Land's End to John O'Groats three years ago, said she has kept going thanks to "painkillers and pints".

BBC: Marion Smith on her 1,120-mile walk

She stayed firmly in the audience until after the speech, but smiled when her husband said she kept him going after the death of their son Ivan.

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The semi-final proved to be more difficult, a poor start meant Gillings lost ground but some excellent lines at the top of the course meant she led going into the first jump and kept in going to the finish line.

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"Something in my left knee went in the semi-final and pure adrenaline kept me going, " she told BBC Sport.

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"They worked very well together and kept the flow going, " she says.

WSJ: Giving More Support to Support-Group Leaders

Jones admits that the only thing that kept her going was "the fear" that she would have to return in 2011 if she did not finish the race.

CNN: The Dakar Rally: Fear and loathing in South America

The Williams sisters hit the ground running and just kept going, Zimbabwe's Black failing to win a game on serve and she and her American partner Huber winning just two points on their second serves.

CNN: 'Apologetic' Serena wins doubles with Venus