Given the task definition and input, reply with output. 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.

sthenurine forelimbs were long with two extra-long fingers and claws compared with the relatively small , stiff arms of modern macropods.
sthenurine forelimbs were long with two extra-long fingers and claws compared with the small , stiff arms of modern macropods.