{"content":"I'm creating an advanced regex challenge that involves mixed formats, optional components, tricky edge cases, and negative lookahead/lookbehind. The text combines various patterns that are hard to filter precisely without regex expertise.","function_call":{"name":"make_move","arguments":"{\"reasoning\":\"I'm creating an advanced regex challenge that involves mixed formats, optional components, tricky edge cases, and negative lookahead/lookbehind. The text combines various patterns that are hard to filter precisely without regex expertise.\",\"move\":{\"text\":\"Records: user1@alpha.com, data@sub.domain.org.uk; Date of birth: 1999/01/01, 15-06-2005, or Dec 31, 2020; Invalid cases: notAnEmail@, user@@domain.com. Tricky codes: code#1234-AZ, special_code-9876-qwerty.\",\"targetItems\":[\"user1@alpha.com\",\"data@sub.domain.org.uk\",\"1999/01/01\",\"15-06-2005\",\"Dec 31, 2020\",\"code#1234-AZ\",\"special_code-9876-qwerty\"]}}"},"usage":{"promptTokens":461,"completionTokens":184... (truncated)