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Okay, so in this next portion of the
class, we're going to look at the parsing

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problem in natural language processing.
And in this lecture, we're going to

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discuss context free grammars, which are a
very important formulas for natural

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language parsing.
And the parsing problem is of great

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importance.
It has relevance to many applications in

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NLP.
And it goes back to fundamental ideas in

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theoretical linguistics which are then
applied in computational models.