```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>(t) Cough-Acute upper respiratory infections of multiple or unspecified sites@13:44:40</query_name>
    <query_timing>ANY</query_timing>
    <specificity_scale>0</specificity_scale>
    <subquery_constraint>
        <first_query>
            <query_id>Event 1</query_id>
            <join_column>STARTDATE</join_column>
            <aggregate_operator>FIRST</aggregate_operator>
        </first_query>
        <operator>LESS</operator>
        <second_query>
            <query_id>Event 2</query_id>
            <join_column>STARTDATE</join_column>
            <aggregate_operator>FIRST</aggregate_operator>
        </second_query>
    </subquery_constraint>
    <subquery>
        <query_id>Event 1</query_id>
        <query_type>EVENT</query_type>
        <query_name>Event 1</query_name>
        <query_timing>SAMEINSTANCENUM</query_timing>
        <specificity_scale>0</specificity_scale>
        <panel>
            <panel_number>1</panel_number>
            <panel_timing>SAMEINSTANCENUM</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>Cough</item_name>
                <item_key>\\ICD10_ICD9\Diagnoses\(R00-R99) Symp~mt2x\(R00-R09) Symp~evaq\(R05) Cough\</item_key>
                <item_icon>FA</item_icon>
                <tooltip>Diagnoses \ Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (r00-r99) \ Symptoms and signs involving the circulatory and respiratory systems (r00-r09)
 \ Cough</tooltip>
                <class>ENC</class>
                <item_is_synonym>false</item_is_synonym>
            </item>
        </panel>
    </subquery>
    <subquery>
        <query_id>Event 2</query_id>
        <query_type>EVENT</query_type>
        <query_name>Event 2</query_name>
        <query_timing>SAMEINSTANCENUM</query_timing>
        <specificity_scale>0</specificity_scale>
        <panel>
            <panel_number>1</panel_number>
            <panel_timing>SAMEINSTANCENUM</panel_timing>
            <panel_accuracy_scale>100</panel_accuracy_scale>
            <invert>0</invert>
            <total_item_occurrences>1</total_item_occurrences>
            <item>
                <hlevel>4</hlevel>
                <item_name>Acute upper respiratory infections of multiple or unspecified sites</item_name>
                <item_key>\\i2b2_DIAG\i2b2\Diagnoses\Respiratory system (460-519)\Acute respiratory infections (460-466)\(465) Acute upper respiratory inf~\</item_key>
                <item_icon>FA</item_icon>
                <tooltip>Diagnoses \ Respiratory system \ Acute respiratory infections \ Acute upper respiratory infections of multiple or unspecified sites</tooltip>
                <class>ENC</class>
                <item_is_synonym>false</item_is_synonym>
            </item>
        </panel>
    </subquery>
</ns4:query_definition>

```

I want to find patients who have had an encounter with a diagnosis of cough and an encounter with a diagnosis of acute upper respiratory infections of multiple or unspecified sites within the same instance number, where the event of cough occurred before the event of acute upper respiratory infections. The specificity scale is set to 0, meaning that all possible matches will be returned. The accuracy scale is set to 10, indicating that the query will return all possible matches with a high level of confidence. The time frame for the query is set to ANY, meaning that there is no specific time constraint on when these encounters occurred.