Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

Q: Context: John Strangways, the British Intelligence (SIS) Station Chief in Jamaica, is ambushed, killed, and his body taken by three assassins known as the "Three Blind Mice". In response, MI6 agent James Bond (007) is summoned to the office of his superior, M. Bond is briefed to investigate Strangways' disappearance and to determine whether it is related to his cooperation with the American Central Intelligence Agency (CIA) on a case involving the disruption of Cape Canaveral rocket launches by radio jamming.Upon his arrival at Kingston Airport, a female photographer tries to take Bond's picture and he is shadowed from the airport. He is picked up by a chauffeur, who Bond determines to be an enemy agent. Bond instructs him to leave the main road and, after a brief fight, Bond starts to interrogate the driver, who then kills himself with a cyanide-embedded cigarette.During his investigation Bond sees a picture of a boatman named Quarrel with Strangways. Bond locates Quarrel but finds him to be un-cooperative when he interviews him. Bond also recognises Quarrel to have been the driver of the car that chased him from the airport. Bond follows Quarrel and is about to be beaten by him and a friend when the fight is interrupted by the man from the airport who has been following Bond: he reveals himself to be CIA agent Felix Leiter and that not only are the two agents on the same mission, but also that Quarrel is helping Leiter. The CIA has traced the mysterious radio jamming of American rockets to the Jamaica vicinity, but aerial photography cannot see the exact location of its origin. Quarrel reveals that he has been guiding Strangways around the nearby islands to collect mineral samples. He also tells about the island of Crab Key, owned by the reclusive Dr. No, who operates a bauxite mine which is rigorously protected against trespassers by an armed security force and low-scan radar.After finding a receipt in Strangways' house about mysterious rocks naming, Professor R.J. Dent, Bond meets with Dent who says he had assayed the samples for Strangways and determined them to be ordinary rocks. This visit makes Dent wary and he takes a boat to Crab Key where Dr. No expresses displeasure at Dent's failure to kill Bond and orders him to try again, this time with a large venomous spider. Bond survives and kills the spider.Bond becomes friendly with Strangways' secretary, Miss Taro and agrees to meet her at her home in the hills above Kingston. While driving there, Bond is attacked by several men driving a large hearse. He is able to outmaneuver them and the hearse is run off the mountain road and explodes. When Bond shows up at Taro's house, she's surprised to see him, a fact that Bond notes easily. She goes into her bedroom and talks on the phone to her boss, who tells her to keep Bond occupied for a few hours. Bond and Taro spend that time in bed.Bond makes a phone call, ostensibly asking for a taxi but actually talking to the local police, who show up soon after and arrest Taro. Bond then sets a trap for Dent and waits for him to show. Dent steals into the bedroom and fires several silenced shots into the bed, which Bond rigged to look like it was occupied. Bond forces Dent to drop his pistol and begins to interrogate him about Strangways and his radioactive rock samples, which Dent tried to cover up. Dent is able to recover his pistol, finding it empty and Bond coldly shoots him dead.Having detected radioactive traces in Quarrel's boat, where Strangways' mineral samples had been, Bond convinces a reluctant Quarrel to take him to Crab Key. On the beach there, Bond meets the beautiful Honey Ryder, dressed only in a white bikini, who is collecting shells. At first she is suspicious of Bond but soon decides to help him, leading them all inland to an open swamp. After nightfall they are attacked by the legendary "dragon" of Crab Key which turns out to be a flame-throwing armoured vehicle. In the resulting gun battle, Quarrel is incinerated by the flame-thrower whilst Bond and Honey are 
 Question: who finds a receipt?

A: bond
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Q: Context: Elements form compounds when they combine chemically. Their atoms join together to form molecules, crystals, or other structures. The atoms are held together by chemical bonds. A chemical bond is a force of attraction between atoms or ions. It occurs when atoms share or transfer valence electrons. Valence electrons are the electrons in the outer energy level of an atom. You can learn more about chemical bonds in this video: MEDIA Click image to the left or use the URL below. URL: Look at the example of water in Figure 7.1. A water molecule consists of two atoms of hydrogen and one atom of oxygen. Each hydrogen atom has just one electron. The oxygen atom has six valence electrons. In a water molecule, two hydrogen atoms share their two electrons with the six valence electrons of one oxygen atom. By sharing electrons, each atom has electrons available to fill its sole or outer energy level. This gives it a more stable arrangement of electrons that takes less energy to maintain. Water (H2 O) is an example of a chemical compound. Water molecules always consist of two atoms of hydrogen and one atom of oxygen. Like water, all other chemical compounds consist of a fixed ratio of elements. It doesnt matter how much or how little of a compound there is. It always has the same composition. Elements are represented by chemical symbols. Examples are H for hydrogen and O for oxygen. Compounds are represented by chemical formulas. Youve already seen the chemical formula for water. Its H2 O. The subscript 2 after the H shows that there are two atoms of hydrogen in a molecule of water. The O for oxygen has no subscript. When there is just one atom of an element in a molecule, no subscript is used. Table 7.1 shows some other examples of compounds and their chemical formulas. Name of Compound Electron Dot Diagram Numbers of Atoms Chemical Formula Name of Compound Hydrogen chloride Electron Dot Diagram Numbers of Atoms H=1 Cl = 1 Chemical Formula HCl Methane C=1 H=4 CH4 Hydrogen peroxide H=2 O=2 H2 O2 Carbon dioxide C=1 O=2 CO2 Problem Solving Problem: A molecule of ammonia consists of one atom of nitrogen (N) and three atoms of hydrogen (H). What is its chemical formula? Solution: The chemical formula is NH3 . You Try It! Problem: A molecule of nitrogen dioxide consists of one atom of nitrogen (N) and two atoms of oxygen (O). What is its chemical formula? The same elements may combine in different ratios. If they do, they form different compounds. Figure 7.2 shows some examples. Both water (H2 O) and hydrogen peroxide (H2 O2 ) consist of hydrogen and oxygen. However, they have different ratios of the two elements. As a result, water and hydrogen peroxide are different compounds with different properties. If youve ever used hydrogen peroxide to disinfect a cut, then you know that it is very different from water! Both carbon dioxide (CO2 ) and carbon monoxide (CO) consist of carbon and oxygen, but in different ratios. How do their properties differ? There are different types of compounds. They differ in the nature of the bonds that hold their atoms together. The type of bonds in a compound determines many of its properties. Three types of bonds are ionic, covalent, and metallic bonds. You will read about these three types in later lessons. You can also learn more about them by watching this video: (7:18). MEDIA Click image to the left or use the URL below. URL: Chocolate: Its been revered for millennia by cultures throughout the world. But while its easy to appreciate all of its delicious forms, creating this confection is a complex culinary feat. Local chocolate makers explain the elaborate engineering and chemistry behind this tasty treat. And learn why its actually good for your health! For more information on the science of chocolate, see [Link] . MEDIA Click image to the left or use the URL below. URL: 
 Question: force of attraction between atoms or ions that share or transfer electrons

A: chemical bond
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Q: Context: Hans Ernst von Kottwitz (1 September 1757 -- 13 May 1843) was a German Pietist and philanthropist. 
 Question: What was Hans Ernst von Kottwitz's nationality?

A:
german
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