Detailed Instructions: 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.
Problem:command module pilot stuart roosa took several hundred seeds on the mission , many of which were germinated on return resulting in the so called moon trees.
Solution:
command module pilot stuart roosa took several hundred seeds on the mission , many of which were germinated upon his return , resulting in what has become known as moon trees.