Complex sentence: Afterwards, many of the Titans were confined in Tartarus, however, Atlas, Epimetheus, Helios, Menoetius, Oceanus and Prometheus were not imprisoned following the Titanomachy.
Split into simpler sentences: Afterwards, many of the Titans were confined in Tartarus. However, Atlas, Epimetheus, Helios, Menoetius, Oceanus and Prometheus were not imprisoned following the Titanomachy.