You may place a detail region within a paragraph. You may use a detail region only once within a paragraph.

Example:

{{ACCOUNT_NAME}}

Thank you for your interest, {{TableStart:Contacts}}{{First_Name}}{{TableEnd:Contacts}}.

If the source report or query returns multiple results, the entire paragraph will repeat for however many results are returned in the report/query. When using a Detail Region in this way, limit the report’s row count to one, to avoid repeating of data within the paragraph.