In Connections, a valid group must explain exactly four entries while leaving the remaining words capable of forming their own groups. Look for precise shared phrases, functions, names, or wordplay rather than broad associations. Beware words intentionally compatible with multiple categories and test the leftover grid before submitting. Difficulty colors are assigned after grouping and should not drive the first inference. For a disputed puzzle, include date or number, language, submitted group, intended category, and remaining words without unmarked spoilers.