Context: Death from laughter is a rare form of death, usually resulting from cardiac arrest or asphyxiation, caused by a fit of laughter. Instances of death by laughter have been recorded from the times of ancient Greece to the modern day.
 Question: can you have a heart attack from laughing Context: Power steering fluid is a sub type of hydraulic fluid. Most are mineral oil or silicone based fluids, while some use automatic transmission fluid, made from synthetic base oil.
 Question: is hydraulic oil the same as power steering fluid Context: During a camping trip, O'Malley learns that Torres has slept with chief of plastic surgery Mark Sloan (Eric Dane), and also discovers that Burke is experiencing tremors in his hand. When O'Malley's father is diagnosed with esophageal cancer and a leaking aortic valve, he refuses to allow Burke to operate on him, instead contacting Erica Hahn (Brooke Smith), Burke's medical school rival. His relationship with Torres is strained when he confronts her about sleeping with Sloan, but he allows her to support him through his father's deteriorating health. Complications from his father's surgery leave him in multi-system organ failure, and his life support is turned off. In an attempt to overcome his grief, O'Malley elopes with Callie to Las Vegas. He later begins to feel that he was mistaken to marry her, and sleeps with Stevens while intoxicated. Stevens confesses that she is in love with him, so O'Malley considers transferring to a different hospital so he can be faithful to his wife. However, he is ineligible to transfer after failing the intern exams. O'Malley decides to repeat his intern year, and confesses to Torres that he slept with Stevens, leading the two to separate. O'Malley and Stevens embark on a short-lived relationship, only to discover there is no real chemistry between them.
 Question: does george's father die in grey's anatomy Context: An acute triangle is a triangle with all three angles acute (less than 90°). An obtuse triangle is one with one obtuse angle (greater than 90°) and two acute angles. Since a triangle's angles must sum to 180°, no triangle can have more than one obtuse angle.
 Question: is it possible for a triangle to have more than one obtuse angle Context: To maintain lactation, a dairy cow must be bred and produce calves. Depending on market conditions, the cow may be bred with a ``dairy bull'' or a ``beef bull.'' Female calves (heifers) with dairy breeding may be kept as replacement cows for the dairy herd. If a replacement cow turns out to be a substandard producer of milk, she then goes to market and can be slaughtered for beef. Male calves can either be used later as a breeding bull or sold and used for veal or beef. Dairy farmers usually begin breeding or artificially inseminating heifers around 13 months of age. A cow's gestation period is approximately nine months. Newborn calves are removed from their mothers quickly, usually within three days, as the mother/calf bond intensifies over time and delayed separation can cause extreme stress on both cow and calf.
 Question: can a cow give milk without getting pregnant
Yes
Yes
Yes
No
No