# Step 2: Choose a Data Set to Search

Using the [Sources Menu](/navigating-and-searching/data-sets-and-sources.md) (Accessed under 'Choose a Data Set'), you can narrow your search to specific Object types in the Census database by clicking on the relevant boxes: 'Antique Monument', 'Postclassical Work', or both 'Antique Monument' and 'Postclassical Work'.

<figure><img src="/files/zMQFlVyEyU0fUbYucsac" alt="" width="375"><figcaption></figcaption></figure>

Make sure as well that "Census" is selected under Pools.

{% hint style="warning" %}
IMPORTANT: Selecting the data you wish to search is an important step. Make sure that you select Antique Monument, Postclassical Work, or both. Ensure that "Census" is checked under pools.
{% endhint %}

You can also optionally search the secondary Object types (Period, Location, Image, Person, Style, and Bibliography) by clicking on the relevant icons in the left-hand menu bar. For more about searching secondary Object types, go [here](/navigating-and-searching/data-sets-and-sources/the-side-bar-secondary-object-types.md).


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.census.de/quick-start/step-2-choose-a-data-set-to-search.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.