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: chemical splashing can cause harm to humans. 
Sentence2: chemical splashing can cause harm to animals.

SOLUTION: cause

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: Many plants respond to the days growing shorter in the fall by going dormant. 
Sentence2: Autumn or Fall is already here.

SOLUTION:
fall