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: Water erosion has similar consequences as wind erosion. 
Sentence2: exposure to water can cause erosion.

SOLUTION: Water

PROBLEM: Sentence1: Coral reefs provide food and shelter to many ocean organisms. 
Sentence2: Coral Reefs Coral reefs are threatened.

SOLUTION: Coral

PROBLEM: Sentence1: Hydrothermal vents are powered by the heat of submarine volcanoes. 
Sentence2: Organisms cluster around formations in the ocean floor powered by the heat of submarine volcanoes.

SOLUTION:
heat