TASK DEFINITION: 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: he tossed jörmungandr into the great ocean that encircles midgard.

SOLUTION: he tossed jörmungandr into the great ocean that surrounds midgard.

PROBLEM: the most common side effects of taking methylphenidate are nervousness and insomnia.

SOLUTION: being unable to sleep and nervousness are normal things may happen when you are taking methylphenidate.

PROBLEM: the bcg matrix -lrb- aka b.c.g. analysis , bcg-matrix , boston box , boston matrix , boston consulting group analysis -rrb- is a chart that had been created by bruce henderson for the boston consulting group in 1970 to help corporations with analyzing their business units or product lines.

SOLUTION:
the bcg matrix -lrb- aka b.c.g. analysis , bcg-matrix , boston box , boston matrix , boston consulting group analysis -rrb- is a chart that was made by bruce henderson for the boston consulting group in 1970 to help corporations with analyzing their business units or product lines.