```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) mytestAdhesion of stoBurn of stomach@10:33:38</query_name>
    <query_timing>ANY</query_timing>
    <specificity_scale>0</specificity_scale>
    <subquery_constraint>
        <first_query>
            <query_id>Observation A</query_id>
            <join_column>STARTDATE</join_column>
            <aggregate_operator>FIRST</aggregate_operator>
        </first_query>
        <operator>LESSEQUAL</operator>
        <second_query>
            <query_id>Observation B</query_id>
            <join_column>STARTDATE</join_column>
            <aggregate_operator>ANY</aggregate_operator>
        </second_query>
        <span>
            <operator>GREATEREQUAL</operator>
            <span_value>1</span_value>
            <units>MONTH</units>
        </span>
        <span>
            <operator>GREATEREQUAL</operator>
            <span_value>1</span_value>
            <units>MONTH</units>
        </span>
    </subquery_constraint>
    <subquery>
        <query_id>Observation A</query_id>
        <query_type>EVENT</query_type>
        <query_name>Observation A</query_name>
        <query_timing>SAMEINSTANCENUM</query_timing>
        <specificity_scale>0</specificity_scale>
        <panel>
            <panel_number>0</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>5</hlevel>
                <item_name>Adhesion of stomach</item_name>
                <item_key>\\i2b2_DIAG\i2b2\Diagnoses\Digestive system (520-579)\Other diseases of intestines and peritoneum (560-569)\(568) Other disorders of peritone~\(568-0) Peritoneal adhesions (pos~\</item_key>
                <item_icon>LA</item_icon>
                <tooltip>Diagnoses \ ... \ Other diseases of intestines and peritoneum \ Other disorders of peritoneum \ Peritoneal adhesions (postoperative) (postinfection)</tooltip>
                <class>ENC</class>
                <item_is_synonym>true</item_is_synonym>
            </item>
            <item>
                <hlevel>5</hlevel>
                <item_name>Gangrenous thoracic stomach</item_name>
                <item_key>\\i2b2_DIAG\i2b2\Diagnoses\Digestive system (520-579)\Hernia of abdominal cavity (550-553)\(551) Other hernia of abdominal c~\(551-3) Diaphragmatic hernia with~\</item_key>
                <item_icon>LA</item_icon>
                <tooltip>Diagnoses \ Digestive system \ Hernia of abdominal cavity \ Other hernia of abdominal cavity, with gangrene \ Diaphragmatic hernia with gangrene</tooltip>
                <class>ENC</class>
                <item_is_synonym>false</item_is_synonym>
            </item>
        </panel>
    </subquery>
    <subquery>
        <query_id>Observation B</query_id>
        <query_type>EVENT</query_type>
        <query_name>Observation B</query_name>
        <query_timing>SAMEINSTANCENUM</query_timing>
        <specificity_scale>0</specificity_scale>
        <panel>
            <panel_number>0</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>5</hlevel>
                <item_name>Burn of stomach</item_name>
                <item_key>\\i2b2_DIAG\i2b2\Diagnoses\Injury and poisoning (800-999)\Burns (940-949)\(947) Burn of internal organs\(947-3) Burn of gastrointestinal ~\</item_key>
                <item_icon>LA</item_icon>
                <tooltip>Diagnoses \ Injury and poisoning \ Burns \ Burn of internal organs \ Burn of gastrointestinal tract</tooltip>
                <class>ENC</class>
                <item_is_synonym>true</item_is_synonym>
            </item>
        </panel>
    </subquery>
</ns4:query_definition>

```

I want to find patients who have had an event of Adhesion of stomach within the same instance as Observation A, and within the same month as Observation B, which is Burn of stomach, within the past year. Observation A and Observation B are of the same type (EVENT) and have a specificity scale of 0, meaning they are both highly specific. The query is looking for patients who have both Adhesion of stomach and Burn of stomach occurring within the same time frame.