Drools Expert is the rule engine and Drools Fusion does complex event processing (CEP).
'org.drools:drools-docs:5.2.0.M2'
<dependency>
<groupId>org.drools</groupId>
<artifactId>drools-docs</artifactId>
<version>5.2.0.M2</version>
</dependency>
<dependency org="org.drools" name="drools-docs" rev="5.2.0.M2"/>
"org.drools", "drools-docs", "5.2.0.M2"