Specify the template for passing queries to the OpenSearch location's URL. In the template, the case-sensitive parameter ...

Specify the template for passing queries to the OpenSearch location's URL. In the template, the case-sensitive parameter "{0}" represents the keywords entered into the Search box by end-users. If you specified a prefix trigger, "{0}" represents the keywords with the prefix removed. Instead of "{0}", you can also use capture groups defined by your trigger pattern (see Trigger Pattern above).

The query template is equivalent to the URL template in OpenSearch. The URL specified should return structured XML (typically RSS or Atom results). It should not consist of a URL that shows an HTML-based search results page.

Example A: The following URL would query a remote search server site:
{2}

Example B: This query would display medical documents with a specific ID number:
{3}

Example C: This query would search only the contents of the "{1}" capture group (instead of the entire user query):
{4}