'org.apache.lucene:lucene-grouping:4.8.1'
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-grouping</artifactId>
<version>4.8.1</version>
</dependency>
<dependency org="org.apache.lucene" name="lucene-grouping" rev="4.8.1"/>
"org.apache.lucene", "lucene-grouping", "4.8.1"