TASK DEFINITION: Generate an overlapping word between the given two sentences. When you find the overlapping words, they don't have to match exactly, e.g., "survival" and "survive" are valid overlapping words. Little words like "the" or "of" don't count! You must generate significant words which are not the stop words.
PROBLEM: Sentence1: a magnet moving in a coil of copper wire can cause an electric current. 
Sentence2: An electric current forms when a magnet is run through an induction coil.

SOLUTION: current

PROBLEM: Sentence1: Moisture is required for the microorganisms to grow. 
Sentence2: Moisture can cause infections to grow.

SOLUTION: Moisture

PROBLEM: Sentence1: Evolution occurs in response to a change in the environment. 
Sentence2: Biological evolution is a change in the genetic characteristics of a population over time.

SOLUTION:
Evolution