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: exercise increases a body 's strength. 
Sentence2: Exercise is more than running and lifting.

SOLUTION: exercise

PROBLEM: Sentence1: if an organism becomes too hot then that organism may die. 
Sentence2: if an organism overheats then that organism may die.

SOLUTION: die

PROBLEM: Sentence1: Kinetic energy is the energy of movement. 
Sentence2: Generators use movement to create electrical energy.

SOLUTION:
energy