Complex sentence: Like many Nirvana songs, "Sappy" addresses themes of entrapment and codependency, but unlike such songs as "About a Girl" and "Heart-Shaped Box," it is not sung from the perspective of the weaker partner.
Split into simpler sentences: Like many Nirvana songs, "Sappy" addresses themes of entrapment and codependency. Unlike songs such as "About a Girl" and "Heart-Shaped Box," however, it is not sung from the perspective of the weaker partner.