"The difference between night shift and day shift. One group was drinking water, and the other one — coffee"
"The upper group was working during the day, and the lower one — at night."
“The Greek amphitheater is deep in the ground. The Roman amphitheater is above the ground.”
"This general store sign, showing that there is actually a difference between jelly and jam"
"It’s bad for your spinal cord. If you sit on it, there will be an asymmetry that might lead to pain."'
"The difference between farm fresh and supermarket strawberries"
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Day shift: challange
Night shift: caffiene