What is the name of the pentalogy which features Dedication 3 and Dedication 4?
Dedication 4 Dedication 4 is a mixtape by Lil Wayne. The mixtape was originally supposed to be released on August 15, 2012, but got pushed several times  and was released on September 3, 2012. It is the fourth installment of Lil Wayne's "Dedication" series, following its predecessors "The Dedication", "Dedication 2" and "Dedication 3". It's also the fourth installment of Lil Wayne's "Gangsta Grillz" pentalogy.
Unnatural History III Unnatural History III was the third in a series of three compilation albums by Coil. Unlike "Stolen & Contaminated Songs" and "Gold Is the Metal with the Broadest Shoulders", "Unnatural History III" collects songs from more than a single era of Coil's work. The album is subtitled "Joyful Participation in the Sorrows of the World".