Apsu, the god of fresh water, and Tiamat, the goddess of salt water, bore a son named Lahmu and a daughter named Lahamu. These siblings bore Anshar and Kishar. Anshar was the sky god. Kishar was the earth goddess. With each successive generation, Apsu and Tiamat's offspring became more wild and unruly, yet more powerful and perfect. —"Enuma Elish,"
Early Babylonian myth

In which part of the plot sequence does this passage belong?

the beginning of the story
the middle of the story
the end of the story