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 Earth being tilted on its rotating axis causes seasons. 
Sentence2: the planet's orbit and tilt causes seasons.

SOLUTION: seasons

PROBLEM: Sentence1: Every photograph is produced by a camera. 
Sentence2: Photographers record images.

SOLUTION: photograph

PROBLEM: Sentence1: a graduated cylinder is used to measure volume of a liquid. 
Sentence2: Graduated cylinders are used to measure the volume of the second form of matter.

SOLUTION:
cylinder