TASK DEFINITION: This is a paraphrasing task. In this task, you're given a sentence and your task is to generate another sentence which express same meaning as the input using different words.
PROBLEM: the debris field is coalescing into geosynchronous orbit . and their course has been unnaturally altered .

SOLUTION: the debris field is merging ... ... in a geosynchronous orbit ... ... and their course has changed naturally .

PROBLEM: vanderbilt and his competitors are in drastic search of passengers and cargo to fill the trains running on their lines .

SOLUTION: vanderbilt and his competitors are drastically looking for passengers and cargo to carry out trains that drive along their tracks .

PROBLEM: and bean a chapter in which charlie brown was falling in love ...

SOLUTION:
and there was a slice when charlie brown fell in love ...