Question: What chain was the largest direct competitor to Blockbuster Video, that was a retailer for United States computer software company which produces a human resources software line claimed to aid companies in evaluating job applicants and their suitability for particular positions by giving them personality tests?
Sentence (from "List of mergers and acquisitions by Symantec"): Symantec was originally focused on artificial intelligence-related projects, and Hendrix hired several Stanford University natural language processing researchers as the company's first employees.
Relevant evidence: No