Complex sentence: Inanna, displaying her typically capricious behavior, mourns his time in the underworld, and her own powers, notably those connected with fertility, subsequently wane, to return in full when he returns from the netherworld each six months.
Split into simpler sentences: Inanna, displaying her typically capricious behavior, mourns his time in the underworld. Her own powers, notably those connected with fertility, subsequently wane, to return in full when he returns from the netherworld each six months.