In response to Alastir:
Julia, and similiar bots, do not use an extensive knowledge base or semantic connections between words. Instead, they rely on simple patterns in sentences to generate pre-fabricated responses. The result is that they may fool you for a short while to generate "meaningful" responses - but they are not useful to extract content from natural language and relate it to a database. They can, in part, be compared to a POS-tagger without semantics attached, but are even more limited than these systems.
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