What does NOT imply a Boolean operator when adding search terms?

The correct answer highlights the use of parentheses, which serve a different purpose in search syntax. Parentheses are utilized to group terms and control the order of evaluation in complex searches, rather than functioning as a Boolean operator itself. In other words, while Boolean operators like AND, OR, and NOT actively combine or modify search terms, parentheses merely organize them without performing any logical operation.

For instance, you might use parentheses to structure a search query that combines different conditions: (error OR warning) AND response_time < 500. Here, the parentheses clarify that the search should first consider both 'error' and 'warning' before applying the additional filter of response time. Therefore, parentheses do not imply a Boolean relationship; they simply help in structuring the search logically.