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# Pauses in Recognition Output

When looking at word output data, the two symbols `<SIL>` and `<s>` sometimes appear. These acoustically represent periods of audio without speech, such as silence or background noise. In the former case (`<SIL>`), the recognition process decides this 'silence' probably has no linguistic role. In the latter case (`<s>`), the recognition process decides it is more likely to end a chain of words and start anew at this point. This is analogous to starting a new sentence, but is only a weak analogy since the decision is made only with local context words.

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