{"text": "Below is an ultra-challenging text:\n\n\"Contact Info for our new hires:\n1) valid.email+testing@sub.domain.co.uk\n2) o'brien@some-site.info\n\nWe also have some phone numbers listed:\n• +44 (0)20 1234 5678\n• +1(800)-555-2795\n• +1-234-567 8901 x567\n(WARNING: (123) 45-6 789 is not a valid phone number.)\n\nDates to note:\n- 07/October/2023\n- \"Oct. 7th, 2023\" (versus the invalid date 07.13.2023 which doesn't exist)\n- 1977_05_25 is another date to keep in mind.\n\nAdditionally, we've assigned some IDs:\n• EMP:AB12-34\n• UserID# 1234-ABCD-xyz\n• TicketNo( AZ-0001 )\n• (Ignore partial examples like #123-X)\n• And more references: Ref. #1234.5678.9\n(But do NOT match \"Ref #ABC.0000\" since it's invalid.)\n\nFinally, watch out for these near misses:\n- john..doe@domain.com\n- john.doe@domain,com\nBoth are invalid emails, but might trick naive patterns!\n\nGood luck with crafting a single pattern that catches EXACTLY our valid items!\"\n\nThis text requires advanced regex to differentiate valid items from the decoys.\n", "targetItems": ["valid.email+testing@sub.domain.co.uk", "o'brien@some-site.info", "+44 (0)20 1234 5678", "+1(800)-555-2795", "+1-234-567 8901 x567", "07/October/2023", "Oct. 7th, 2023", "1977_05_25", "EMP:AB12-34", "UserID# 1234-ABCD-xyz", "TicketNo( AZ-0001 )", "Ref. #1234.5678.9"]}