```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>Prostate cancer@14:05:35</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>5</hlevel>
            <item_name>Prostate cancer</item_name>
            <item_key>\\i2b2_DIAG\i2b2\Diagnoses\Neoplasms (140-239)\Malignant neoplasms (140-208)\Genitourinary organs (179-189)\(185) Malignant neoplasm of prost~\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Diagnoses \ Neoplasms \ Malignant neoplasms \ Genitourinary organs \ Malignant neoplasm of prostate</tooltip>
            <class>ENC</class>
            <item_is_synonym>true</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find all patients with a diagnosis of prostate cancer in the i2b2 database, regardless of when the diagnosis was made, using the specific encoding "Malignant neoplasm of prostate" (185) from the Diagnoses category, under the Neoplasms subcategory, within the Malignant neoplasms section, and specifically related to Genitourinary organs. This query will have a specificity scale of 0, meaning that it will return all instances of prostate cancer regardless of specificity, and an accuracy scale of 100, indicating high confidence in the results. The query will include only one item and will not be inverted, meaning that the results will only include patients with the specified diagnosis.