```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>Sheph-Sheph-Sheph@15:43:20</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>Shepherd, Derek. MD</item_name>
            <item_key>\\i2b2_PROV\i2b2\Providers\Neurosurgery\Shepherd, Derek. MD\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>i2b2 \ Providers \ Neurosurgery \ Shepherd, Derek. MD</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
    <panel>
        <panel_number>2</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>Shepherd, Derek. MD</item_name>
            <item_key>\\i2b2_PROV\i2b2\Providers\Neurosurgery\Shepherd, Derek. MD\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>i2b2 \ Providers \ Neurosurgery \ Shepherd, Derek. MD</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
    <panel>
        <panel_number>3</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>Shepherd, Derek. MD</item_name>
            <item_key>\\i2b2_PROV\i2b2\Providers\Neurosurgery\Shepherd, Derek. MD\</item_key>
            <item_icon>LA</item_icon>
            <tooltip>i2b2 \ Providers \ Neurosurgery \ Shepherd, Derek. MD</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find all instances of the provider "Shepherd, Derek. MD" within the i2b2 database, specifically within the "Providers" category in the "Neurosurgery" section, using the query builder. This query is looking for any occurrences of this provider's name, with a specificity scale of 0, and a panel accuracy scale of 100. The query is spread across three panels, with one occurrence in each panel. The provider's key is identified as "\\i2b2_PROV\i2b2\Providers\Neurosurgery\Shepherd, Derek. MD" and the tooltip displays "i2b2 \ Providers \ Neurosurgery \ Shepherd, Derek. MD". The class of the query is "ENC" and it is not a synonym.