Much of the research is conducted in a small room - Room 325 in McClatchy Hall at Stanford University in California.

BBC: NEWS | Programmes | From Our Own Correspondent | Machines' way with words

So next Tuesday, 6 July, we gather again in our community hall for an anniversary party to celebrate a huge year for our small town.

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Hall was held in the small storage facility for five hours before she heard a noise.

CNN: Garrido victim: 'He had me for 8 hours. He had her for 18 years'