```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>Cefazolin@21:31:33</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>1</hlevel>
            <item_name>Cefazolin</item_name>
            <item_key>\\i2b2_MEDS\i2b2\Medications\MUL\(LME10) anti-infectives\(LME36) cephalosporins\(LME37) first generation cephalosporins\cefazolin\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>medications \ anti-infectives \ cephalosporins \ first generation cephalosporins \ cefazolin</tooltip>
            <class>ENC</class>
            <constrain_by_modifier>
                <modifier_name>Rx Sig</modifier_name>
                <modifier_key>\\i2b2_MEDS\Medication\RxSig\</modifier_key>
                <applied_path>\i2b2\Medications\%</applied_path>
                <constrain_by_value>
                    <value_operator>LIKE[exact]</value_operator>
                    <value_constraint>test</value_constraint>
                    <value_type>TEXT</value_type>
                </constrain_by_value>
            </constrain_by_modifier>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
</ns4:query_definition>

```

I want to find all instances of the medication 'Cefazolin' within the i2b2 database, with a specificity scale of 0 and an accuracy scale of 100, constrained by the 'Rx Sig' modifier with the value 'test' applied to the 'Medications' path. The query should be applied to any time period and should include only one item on the panel, with the icon 'FA'. The query is named 'Cefazolin@21:31:33' and is not a synonym.