```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>Visit-Essen-Dia@18:28:43</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>0</hlevel>
            <item_name>(PrevQuery)Visit-Essen-Diabe-primaryhypertension@11:34:20</item_name>
            <item_key>masterid:2883</item_key>
            <tooltip>Visit-Essen-Diabe-primaryhypertension@11:34:20</tooltip>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find any visit where a patient has been diagnosed with primary hypertension, as indicated by the presence of the concept "Visit-Essen-Diabe-primaryhypertension@1:34:20" in the i2b2 data repository, and the specificity scale is set to 0, meaning that all instances of this concept will be included in the search, regardless of their specificity. The accuracy scale is set to 100, indicating that the search should be highly accurate, and the query timing is set to ANY, meaning that the search will include visits from any time period. The panel timing is also set to ANY, so the search will include visits from any time period within the panel. The panel number is 1, and the invert flag is set to 0, meaning that the search will include all instances of the specified concept. There is a total of 1 item in the query, and the concept (PrevQuery)Visit-Essen-Diabe-primaryhypertension@1:34:20 is used as the key for the search. The tooltip for this item is "Vis