Text: In a closed system, no mass may be transferred in or out of the system boundaries. The system always contains the same amount of matter, but heat and work can be exchanged across the boundary of the system. Whether a system can exchange heat, work, or both is dependent on the property of its boundary.

Question: can work be done in a closed system?
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Answer: yes

Text: The Great Dane is a large German breed of domestic dog known for its giant size. The German name of the breed is Deutsche Dogge, or German Mastiff. The French name is Dogue Allemand.

Question: are great danes part of the mastiff family?
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Answer: yes

Text: The primary difficulty in completing the challenge lies in the limited capacity of the stomach. Generally, the stomach can hold only half a gallon (1.9 L). Stretch receptors in the organ sense when its limit is reached, triggering a vomit reflex that swiftly empties the stomach. Moreover, drinking a gallon of milk is more difficult than drinking a gallon of water. The fat and protein in milk each inhibit the stomach from releasing its contents into the small intestine, forcing more of the liquid to remain in the stomach. In turn, the action of gastric acid and proteases in the stomach cause proteins in the milk to unravel and expand the liquid into a thick semi-solid substance, further reducing the amount of fluid that can be held in the stomach without being regurgitated.

Question: can drinking too much milk make you vomit?
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Answer: yes

Text: A hinny is a domestic equine hybrid that is the offspring of a male horse, a stallion, and a female donkey, a jenny. It is the reciprocal cross to the more common mule, which is the product of a male donkey, a jack, and a female horse, a mare.

Question: can a male horse breed with a female donkey?
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Answer:
yes