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.

Example Input: at four-and-a-half years old he was left to fend for himself on the streets of northern italy for the next four years , living in various orphanages and roving through towns with groups of other homeless children.
Example Output: at four-and-a-half years old he was left to fend for himself on the streets of italy for the next four years , living in orphanages and roaming through towns with other homeless children.

Example 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.
Example 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.

Example Input: rollercoaster tycoon -lrb- or often abbreviated rct -rrb- is a series of computer games that simulate amusement park management.
Example Output:
the rollercoaster tycoon computer game series , also known as rct , simulate amusement park management.