I often hear that we can’t create natural language understanding (NLU), because we wouldn’t know how to represent meaning. But 30 years ago Professor George A. Miller, the famous psychologist and cognitive scientist, began WordNet.

WordNet is a networked dictionary/thesaurus. You enter a word to find definitions and related meanings, but it’s also, unexpectedly, a simple universal encyclopedia (UE) — a system that, given choices, can identify the right meaning.

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