'org.apache.lucene:lucene-grouping:5.1.0'
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-grouping</artifactId>
<version>5.1.0</version>
</dependency>
<dependency org="org.apache.lucene" name="lucene-grouping" rev="5.1.0"/>
"org.apache.lucene", "lucene-grouping", "5.1.0"