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: proper saddle care can extend the useful life of a saddle , often for decades.
Example Output: taking proper care of a saddle can make it last decades longer.

Example Input: design philosophies two basic designs exist : event-driven -lrb- priority scheduling -rrb- designs switch tasks only when an event of higher priority needs service , called pre-emptive priority.
Example Output: pre-emptive priority is when regular work is done until a higher priority job comes in.

Example Input: the spot was observed at different times with different sizes and shapes.
Example Output:
the spot was watched at different times with different sizes and shapes.