Complex sentence: A swampy industrialized planet whose populace, called the Helots, were quickly annexed by the Federation by means of the pacification drug Pylene-50, which was administered via a "medical laser" which appeared function like a hand-held beam weapon.
Split into simpler sentences: A swampy industrialized planet whose populace, called the Helots, were quickly annexed by the Federation by means of the pacification drug Pylene-50. The drug was administered via a "medical laser" that appeared function like a hand-held beam weapon.