original: It drifted westward, and the next day it organized into a subtropical depression.
simplifications: The next day it organized into a subtropical depression. It moved west, and the next day it turned into a subtropical cyclone. Heading west, the next day it turned into a subtropical storm. It drifted westward. The next day it became a subtropical depression. It drifted westward. The next day, it became a subtropical depression. It drifted west. The next day it organized into a subtropical depression. It drifted west. The next day, it became a subtropical depression. It moved towards the west. The day after it created a subtropical depression. It moved west and the next day it formed into a subtropical depression. It went west and then became a subtropical depression.