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 owns the island of crab key ?
[A]: dr. no


[Q]: Context: We show that overexpression of Polo-like kinase 4 (Plk4) in human cells induces centrosome amplification through the simultaneous generation of multiple procentrioles adjoining each parental centriole. This provided an opportunity for dissecting centriole assembly and characterizing assembly intermediates. Critical components were identified and ordered into an assembly pathway through siRNA and localized through immunoelectron microscopy. Plk4, hSas-6, CPAP, Cep135, gamma-tubulin, and CP110 were required at different stages of procentriole formation and in association with different centriolar structures. Remarkably, hSas-6 associated only transiently with nascent procentrioles, whereas Cep135 and CPAP formed a core structure within the proximal lumen of both parental and nascent centrioles. Finally, CP110 was recruited early and then associated with the growing distal tips, indicating that centrioles elongate through insertion of alpha-/beta-tubulin underneath a CP110 cap. Collectively, these data afford a comprehensive view of the assembly pathway underlying centriole biogenesis in human cells. 
 Question: Where in the cell do we find the protein Cep135?
[A]: centrosome


[Q]: Context: Almost all earthquakes occur at plate boundaries. All types of plate boundaries have earthquakes. Convection within the Earth causes the plates to move. As the plates move, stresses build. When the stresses build too much, the rocks break. The break releases the energy that was stored in the rocks. The sudden release of energy creates an earthquake. During an earthquake the rocks usually move several centimeters or rarely as much as a few meters. Elastic rebound theory describes how earthquakes occur (Figure 7.21). Where an earthquake takes place is described by its focus and epicenter. The point where the rock ruptures is the earthquakes focus. The focus is below the Earths surface. A shallow earthquake has a focus less than 70 kilometers (45 miles). An intermediate-focus earthquake has a focus between 70 and 300 kilometers (45 to 200 miles). A deep-focus earthquake is greater than 300 kilometers (200 miles). About 75% of earthquakes have a focus in the top 10 to 15 kilometers (6 to 9 miles) of the crust. Shallow earthquakes cause the most damage. This is because the focus is near the Earths surface, where people live. The area just above the focus, on the land surface, is the earthquakes epicenter (Figure 7.22). The towns or cities near the epicenter will be strongly affected by the earthquake. Nearly 95% of all earthquakes take place along one of the three types of plate boundaries. As you learned in the Plate Tectonics chapter, scientists use the location of earthquakes to draw plate boundaries. The region around the Pacific Ocean is called the Pacific Ring of Fire. This is due to the volcanoes that line the region. The area also has the most earthquakes. About 80% of all earthquakes strike this area. The Pacific Ring of Fire is caused by the convergent and transform plate boundaries that line the Pacific Ocean basin. About 15% of all earthquakes take place in the Mediterranean-Asiatic belt. The convergent plate boundaries in the region are shrinking the Mediterranean Sea. The convergence is also causing the Himalayas to grow. The remaining 5% of earthquakes are scattered around the other plate boundaries. A few earthquakes take place in the middle of a plate, away from plate boundaries. Transform plate boundaries produce enormous and deadly earthquakes. These quakes at transform faults have shallow focus. This is because the plates slide past each other without moving up or down. The largest earthquake on the San Andreas Fault occurred in 1906 in San Francisco. Other significant earthquakes in California include the 1989 Loma Prieta earthquake near Santa Cruz (Figure 7.23) and the 1994 Northridge earthquake near Los Angeles. There are many other faults spreading off the San Andreas, which produce around 10,000 earthquakes a year (Figure Convergent plate boundaries also produce strong, deadly earthquakes. Earthquakes mark the motions of colliding plates and the locations where plates plunge into the mantle. These earthquakes can be shallow, intermediate or deep focus. The Philippine plate and the Pacific plate subduct beneath Japan, creating as many as 1,500 earthquakes every year. In March 2011, the 9.0 magnitude Tohoku earthquake struck off of northeastern Japan. Damage from the quake was severe. More severe was the damage from the tsunami generated by the quake (Figure 7.25). In all, 25,000 people were known dead or missing. The Cascades Volcanoes line the Pacific Northwest of the United States. Here, the Juan de Fuca plate subducts beneath the North American plate. The Cascades volcanoes are active and include Mount Saint Helens. Major earthquakes occur here approximately every 300 to 600 years. The last was in 1700. Its magnitude was between 8.7 and 9.2. It has now been more than 300 years since that earthquake. The next massive earthquake could strike the Pacific Northwest at any time. The collision of two continents also creates massive earthquakes. Many earthquakes happen in the region in and around the Himalayan Mountains. The 2001 Gujarat, India earthquake is responsible for about 20,000 deaths, with many more people injured or made homeless. Earthquakes also occur at divergent plate boundaries. At mid-ocean ridges, these earthquakes tend to be small and shallow focus because the 
 Question: point below the surface where an earthquake begins
[A]:
focus