## Filter on string attributes

Tator provides a search interface for annotations in the annotation view. This facilitates use cases such as analyzing algorithm performance or filtering down to a particular class of interest. It uses [Lucene query syntax](https://lucene.apache.org/core/2_9_4/queryparsersyntax.html), which is the string query syntax used by [Elasticsearch](https://www.elastic.co/). This tutorial will show you how to use it to filter annotations in the annotation view.

On the entity browser, click the `Entities` button corresponding to the object detections.

The boxes will be grouped by a specific attribute. In this case, they are grouped by `Scientific Name`.

To have your results filtered to show only a specific class, click on the `Filter` button.

Adjust your condition accordingly, and then press `Apply Filter`.

Once your filter is successfully applied, you should see a “Filters applied” message appear.

To see the entity’s exact frame(s) with your filter, click on the `Go to entity’s frame` button.