usageInfo—Usage and Acknowledgment File Path 
NOTE SNTL_QUERY_USAGE_INFO_VERSION(v) macro is used to obtain the completed usage and acknowledgment file path . Here, v represents the query version, which is specified under the double quotes, such as "1.0".
Query
<?xml version="1.0" encoding="UTF-8"?>
<sentinelQuery query="usageInfo" version="1.0"/>
Scope
<!-- empty scope -->
<?xml version="1.0" encoding="UTF-8"?>
<sentinelScope>
</sentinelScope>
Output
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<sentinelInfo>
<usage>
<completedUsageFilePath>{usage-base-path}/{hashed-id}</completedUsageFilePath>
<ackFilePath>{ack-base-path}</ackFilePath>
</usage>
</sentinelInfo>