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: All photos are digital images. 
Sentence2: satellites are used to take photos from space.

SOLUTION: photos

PROBLEM: Sentence1: Information on DNA is organized into genes. 
Sentence2: DNA codes for proteins.

SOLUTION: DNA

PROBLEM: Sentence1: a magnet moving in a coil of copper wire can cause an electric current. 
Sentence2: a magnet moving in a coil of copper wire can cause a flow of electric charge.

SOLUTION:
a