Which linguistic retail technology innovation first allowed customers to search for products using natural language queries instead of specific keywords or categories?

In the world of retail, language plays a crucial role in how products are marketed and sold. From naming conventions to persuasive copy, linguistics shapes consumer perceptions and purchasing decisions. This trivia question explores a fascinating intersection of language science and retail technology that revolutionized how customers interact with products. Test your knowledge about how linguistic principles have transformed the retail landscape!

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Semantic search engines (introduced by Amazon in 2012)
Phonetic matching systems (introduced by eBay in 2010)
Syntactic pattern recognition (introduced by Walmart in 2014)
Morphological analyzers (introduced by Alibaba in 2015)