```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) Diagnostic RadiDiagnostic RadiOperations on d@14:15:24</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>4</hlevel>
            <item_name>Diagnostic Radiology</item_name>
            <item_key>\\i2b2_PROC\i2b2\Procedures\PRC\ICD9 (Inpatient)\(87-99) Diagnostic and nonsurgical procedures\(p87) Diagnostic Radiology\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Procedures \ ICD9 (Inpatient) \ Diagnostic and nonsurgical procedures \ Diagnostic Radiology</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
        <item>
            <hlevel>3</hlevel>
            <item_name>Operations on digestive system</item_name>
            <item_key>\\i2b2_PROC\i2b2\Procedures\PRC\ICD9 (Inpatient)\(42-54) Operations on digestive system\</item_key>
            <item_icon>FA</item_icon>
            <tooltip>Procedures \ ICD9 (Inpatient) \ Operations on digestive system</tooltip>
            <class>ENC</class>
            <item_is_synonym>false</item_is_synonym>
        </item>
    </panel>
    <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>
        <span>
            <operator>GREATEREQUAL</operator>
            <span_value>1</span_value>
            <units>DAY</units>
        </span>
    </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>4</hlevel>
                <item_name>Diagnostic Radiology</item_name>
                <item_key>\\i2b2_PROC\i2b2\Procedures\PRC\ICD9 (Inpatient)\(87-99) Diagnostic and nonsurgical procedures\(p87) Diagnostic Radiology\</item_key>
                <item_icon>FA</item_icon>
                <tooltip>Procedures \ ICD9 (Inpatient) \ Diagnostic and nonsurgical procedures \ Diagnostic Radiology</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>3</hlevel>
                <item_name>Operations on digestive system</item_name>
                <item_key>\\i2b2_PROC\i2b2\Procedures\PRC\ICD9 (Inpatient)\(42-54) Operations on digestive system\</item_key>
                <item_icon>FA</item_icon>
                <tooltip>Procedures \ ICD9 (Inpatient) \ Operations on digestive system</tooltip>
                <class>ENC</class>
                <item_is_synonym>false</item_is_synonym>
            </item>
        </panel>
    </subquery>
</ns4:query_definition>

```

I want to find all patients who have had a Diagnostic Radiology procedure and an Operation on the digestive system within the same hospital encounter (SAMEINSTANCENUM) where the Diagnostic Radiology procedure occurred before (LESS) the Operations on the digestive system by at least 1 day (GREATEREQUAL) or more (DAY).