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: the emission of sulfur dioxide causes acid rain.
Sentence2: Sulfur dioxide emissions causes soil nutrients to be leached away.

SOLUTION: dioxide

PROBLEM: Sentence1: Distance is measured in meters the SI unit of distance.
Sentence2: The SI unit of distance is in meters.

SOLUTION: SI

PROBLEM: Sentence1: For many, adolescence is synonymous with puberty.
Sentence2: In the puberty stage is a time of significant mental, emotional and social change.

SOLUTION:
puberty