input: Please answer the following: Extract the answer to the question from the following context. Question: What can damage trees? Context: It is remarkable that the inner heartwood of old trees remains as sound as it usually does, since in many cases it is hundreds, and in a few instances thousands, of years old. Every broken limb or root, or deep wound from fire, insects, or falling timber, may afford an entrance for decay, which, once started, may penetrate to all parts of the trunk. The larvae of many insects bore into the trees and their tunnels remain indefinitely as sources of weakness. Whatever advantages, however, that sapwood may have in this connection are due solely to its relative age and position.
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output: decay

input: Please answer the following: Extract the answer to the question from the following context. Question: What could potentially be dangerous for a jet landing or taking off? Context: Airport construction boomed during the 1960s with the increase in jet aircraft traffic. Runways were extended out to 3,000 m (9,800 ft). The fields were constructed out of reinforced concrete using a slip-form machine that produces a continual slab with no disruptions along the length. The early 1960s also saw the introduction of jet bridge systems to modern airport terminals, an innovation which eliminated outdoor passenger boarding. These systems became commonplace in the United States by the 1970s.
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output: disruptions along the length

input: Please answer the following: Extract the answer to the question from the following context. Question: How are light orbs similar to fixtures? Context: An important property of light fixtures is the luminous efficacy or wall-plug efficiency, meaning the amount of usable light emanating from the fixture per used energy, usually measured in lumen per watt. A fixture using replaceable light sources can also have its efficiency quoted as the percentage of light passed from the "bulb" to the surroundings. The more transparent the lighting fixture is, the higher efficacy. Shading the light will normally decrease efficacy but increase the directionality and the visual comfort probability.
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output: efficiency quoted as the percentage of light passed from the "bulb" to the surroundings

input: Please answer the following: Extract the answer to the question from the following context. Question: Who does Calpurnia work for? Context: In a 1964 interview, Lee remarked that her aspiration was "to be ... the Jane Austen of South Alabama." Both Austen and Lee challenged the social status quo and valued individual worth over social standing. When Scout embarrasses her poorer classmate, Walter Cunningham, at the Finch home one day, Calpurnia, their black cook, chastises and punishes her for doing so. Atticus respects Calpurnia's judgment, and later in the book even stands up to his sister, the formidable Aunt Alexandra, when she strongly suggests they fire Calpurnia. One writer notes that Scout, "in Austenian fashion", satirizes women with whom she does not wish to identify. Literary critic Jean Blackall lists the priorities shared by the two authors: "affirmation of order in society, obedience, courtesy, and respect for the individual without regard for status".
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output:
the Finch home