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: Fully cooking oysters kills the bacteria. 
Sentence2: Fully cooking oysters can prevent illness.

SOLUTION: Fully

PROBLEM: Sentence1: Mitosis is cell division. 
Sentence2: Chromosomes are the form of the genetic material of a cell during mitosis.

SOLUTION: Mitosis

PROBLEM: Sentence1: Jaws also make cartilaginous fish excellent predators. 
Sentence2: some excellent predators  have jaws that have rows of teeth that grow throughout life.

SOLUTION:
Jaws