You are given a sentence and your task is to generate another sentence that supports the given input.

Input: Consider Input: A scientific law always applies under the same conditions, and implies that there is a causal relationship involving its elements.

Output: In science, something that always applies under the same conditions is called a scientific law.

Input: Consider Input: Complex machines are merely combinations of two or more simple machines.

Output: A complex machine is described by: it is made of more than one simple machine.

Input: Consider Input: The elimination is driven by competition between neurons, which in turn is governed by the activity or use of neural circuits.
Output: Half of the neurons formed in the embryo are eliminated because of competition