Which linguistic feature was a breakthrough for retail chatbots, allowing them to better understand customer questions about products regardless of how they were phrased?

Virtual shopping assistants and retail chatbots have revolutionized customer service by incorporating advanced linguistic technology. These AI systems must understand natural language with all its nuances, colloquialisms, and context. This poll tests your knowledge about the linguistic capabilities that power modern retail chatbots and how they've evolved to create more natural shopping experiences.

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Natural Language Processing with semantic intent recognition
Simple keyword matching algorithms
Phonological processing systems
Syntax-only parsing without contextual understanding