'drools:drools-core:2.0-beta-21'
<dependency>
<groupId>drools</groupId>
<artifactId>drools-core</artifactId>
<version>2.0-beta-21</version>
</dependency>
<dependency org="drools" name="drools-core" rev="2.0-beta-21"/>
"drools", "drools-core", "2.0-beta-21"