You are playing the Regex Pattern Matcher game against gpt-4o.

Game history:
Turn 1: gpt-4o proposed text with target items: ["E-ID:123ABC","E.ID=45-XYZ-001","Employee ID 00077HIJKLMNOP","important.email_1@example.com","email.version2@domain.net.org","test-email@co.uk","12/31/1999","1999-31-12","31.12.1999","(Dec 31 1999)","+1-800-123-4567","(123)456-7890","123.456.7890"]
Current turn: 1 of 10
You are the SOLVER.

Your opponent has provided the following challenge:

Text: "Employee Records: E-ID:123ABC DEF789, E.ID=45-XYZ-001, Employee ID 00077HIJKLMNOP; Emails: important.email_1@example.com, email.version2@domain.net.org, test-email@co.uk; Dates: 12/31/1999, 1999-31-12, 31.12.1999, (Dec 31 1999); Phone Numbers: +1-800-123-4567, (123)456-7890, 123.456.7890."

You need to create a regular expression pattern that matches EXACTLY these items in the text:
[
  "E-ID:123ABC",
  "E.ID=45-XYZ-001",
  "Employee ID 00077HIJKLMNOP",
  "important.email_1@example.com",
  "email.version2@domain.net.org",
  "test-email@co.uk",
  "12/31/1999",
  "1999-31-12",
  "31.12.1999",
  "(Dec 31 1999)",
  "+1-800-123-4567",
  "(123)456-7890",
  "123.456.7890"
]

Rules:
1. Your regex must match ALL of the target items in the text.
2. Your regex must NOT match anything else in the text.
3. The pattern should be a valid JavaScript regular expression.
4. Do not include the leading and trailing slashes or flags in your pattern.

You'll use the "make_move" function to submit your solution with:
1. reasoning: Your reasoning for this regex pattern
2. move: The regex pattern as a simple string

Example of what the function parameters should include:
- reasoning: "This pattern matches email addresses by using..."
- move: "[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}"

IMPORTANT:
- The regex pattern should be a simple string.
- Do NOT use raw regex notation with slashes like /pattern/.
- Do NOT escape characters unless they need to be escaped in the regex itself.
- For example, to match parentheses, use "\(\)" not "\\(\\)".
- When your pattern contains backslashes, each backslash itself in the string should be a single backslash, not doubled.

Think carefully and test your pattern mentally before submitting.