```xml
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ns4:query_definition xmlns:ns2="http://www.i2b2.org/xsd/cell/crc/psm/1.1/" xmlns:ns4="http://www.i2b2.org/xsd/cell/crc/psm/querydefinition/1.1/" xmlns:ns3="http://www.i2b2.org/xsd/cell/crc/psm/analysisdefinition/1.1/">
    <query_name>Male@08:33:43</query_name>
    <query_timing>ANY</query_timing>
    <specificity_scale>0</specificity_scale>
    <panel>
        <panel_number>1</panel_number>
        <panel_timing>ANY</panel_timing>
        <panel_accuracy_scale>100</panel_accuracy_scale>
        <invert>0</invert>
        <total_item_occurrences>1</total_item_occurrences>
        <item>
            <hlevel>3</hlevel>
            <item_name>Male</item_name>
            <item_key>\\i2b2_DEMO\i2b2\Demographics\Gender\Male\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>Demographic \ Gender \ Male</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find all male patients in the i2b2 database with any time frame specified. This query will search for the gender attribute within the demographics category, and specifically look for males (denoted by the key "\\i2b2_DEMO\i2b2\Demographics\Gender\Male\") with a specificity scale of 0, meaning all results are relevant, and a panel accuracy scale of 100, indicating high confidence in the results. The panel number is 1, and the invert value is 0, meaning the search will include males only. The total number of items in the panel is 1, and the class is set to ENC, which stands for Encounter. The tooltip provides additional information about the category being searched, which is Demographic and the specific attribute, Gender, with the value being Male.