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

Game history:
Turn 1: gpt-4o-mini proposed text with target items: ["alice_90@xyz.us","bob.smith@mail.server.com","mark2001@e-commerce.store","(919) 555-0123","+1-800-555-0199","123 Elm St - Apt #5","PO Box 456","789 Broadway Ave.","321 Road St","CUST-1234-AB","EMP-5678-CD","PRT-9101","REM-2341-XYZ"]
Current turn: 1 of 10
You are the SOLVER.

Your opponent has provided the following challenge:

Text: "User registrations: alice_90@xyz.us, bob.smith@mail.server.com, mark2001@e-commerce.store, (919) 555-0123, +1-800-555-0199. Addresses: 123 Elm St - Apt #5, PO Box 456, 789 Broadway Ave., 321 Road St; Country: USA. Contact IDs: CUST-1234-AB, EMP-5678-CD, PRT-9101; REM-2341-XYZ."

You need to create a regular expression pattern that matches EXACTLY these items in the text:
[
  "alice_90@xyz.us",
  "bob.smith@mail.server.com",
  "mark2001@e-commerce.store",
  "(919) 555-0123",
  "+1-800-555-0199",
  "123 Elm St - Apt #5",
  "PO Box 456",
  "789 Broadway Ave.",
  "321 Road St",
  "CUST-1234-AB",
  "EMP-5678-CD",
  "PRT-9101",
  "REM-2341-XYZ"
]

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.