Complex sentence: Batman, Robin and Wonder Woman visit the Fortress of Solitude with gifts on Superman's birthday, only to find him in a catatonic state, a large alien plant stuck to his chest, its tendrils wrapped around his body.
Split into simpler sentences: Batman, Robin and Wonder Woman visit the Fortress of Solitude with gifts on Superman's birthday. There is a large alien plant stuck to his chest, its tendrils wrapped around his body.