Complex sentence: In October 2005 Drools was federated into JBoss as part of their JEMS offering and rebranded "JBoss Rules", in 2006 JBoss itself was acquired by Red Hat.
Split into simpler sentences: In October 2005 Drools was federated into JBoss as part of their JEMS offering and rebranded "JBoss Rules". In 2006 JBoss itself was acquired by Red Hat.