TASK DEFINITION: You are given a sentence and your task is to generate another sentence that supports the given input.
PROBLEM: About 20 percent of the world's population lack access to safe drinking water, and 50 percent have no access to a sanitation system.

SOLUTION: At least 20 percent of the world’s people do not have a ready supply of clean drinking water.

PROBLEM: Gene expression, or the synthesis of specific proteins, is regulated mainly at the level of transcription, the process of making RNA copies of the DNA sequences that comprise the genes.

SOLUTION: Gene expression and protein synthesis are usually considered the same molecular process.

PROBLEM: Lyme  Disease is caused by a bacterium that's transmitted by tick bite, but many infected people don't remember a bite.

SOLUTION:
Lyme disease is caused by bacteria.