Summary

The earliest computers were quite unsuitable for NLP.

Early attempts at machine translation failed.

Winograd's SHRDLU was a turning point in NLP.

Modern NLP has increasingly adopted declarative formalisms.

Ambiguity is the single most important problem in NLP.

First order logic has been widely used to represent meanings.

Interpreting an utterance depends on knowledge of the context.

Commercial applications of NLP are becoming practical.

Prolog is an appropriate programming language for NLP.

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