```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>Central nervous@10:25:48</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>2</hlevel>
            <item_name>Central nervous system agents</item_name>
            <item_key>\\i2b2_MEDS\i2b2\Medications\MUL\(LME92) central nervous system agents\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>medications \ central nervous system agents</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find all records containing medications related to the central nervous system within the i2b2 database using the query builder, with a specificity scale of 0 and a panel accuracy scale of 100, and the query should be applied to any time frame with one item occurrence. The query will include medications under the category "Central Nervous System Agents" with the key "\\i2b2_MEDS\i2b2\Medications\MUL\(LME92) central nervous system agents" and will have an icon of FA. The query will not include synonyms.