{"content":"I'm creating an extremely difficult challenge that requires the regex to capture three distinct formats: emails, phone numbers, and dates with various separators. The text sample includes valid target items that follow non-trivial rules (e.g., emails with plus signs and hyphens, phone numbers with varying formats and optional extensions, and dates in different formats) and also includes distractors (i.e., invalid or borderline cases) to ensure that only the intended patterns are matched. This challenge forces use of advanced regex techniques such as alternation, negative lookahead/lookbehind, optional groups, and backreferences in a single regex.","function_call":{"name":"make_move","arguments":"{\"reasoning\": \"I'm creating an extremely difficult challenge that requires the regex to capture three distinct formats: emails, phone numbers, and dates with various separators. The text sample includes valid target items that follow non-trivial rules (e.g., emails with plus sign... (truncated)