In this task, you're given a sentence and your task is to generate a simplified sentence that focuses on lexical paraphrasing from the original sentence given in the input.

Ex Input:
on september 22 , the system had become more organized , and the national hurricane center mentioned the potential existed for tropical or subtropical development in the area.

Ex Output:
the system had become more organized by september 22 and the national hurricane center mentioned the potential for tropical or subtropical development in the area.

Ex Input:
he even envisioned centralized air conditioning that could cool entire cities.

Ex Output:
he even imagined centralized air conditioning that could cool entire cities.

Ex Input:
they would later return to the revived series in the 2008 christmas special " the next doctor " , introducing two new variants of the race ; the cyber-shades and the cyber-king.

Ex Output:
they would later return to the brought back to life series in the 2008 christmas special " the next doctor " , introducing two new versions of the race ; the computer-shades and the computer-king.