In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.

Ex Input:
Examples of this form of articulation are found in the hip, where the rounded head of the femur (ball) rests in the cup-like acetabulum (socket) of the pelvis, and in the glenohumeral joint of the shoulder, where the rounded head of the humerus (ball) rests in the cup-like glenoid fossa (socket) of the shoulder blade. The shoulder includes a sternoclavicular articulation joint.

Ex Output:
how did the ball and socket joint get its name


Ex Input:
The wavelength is the distance from one peak of the wave's electric field (wave's peak / crest) to the next, and is inversely proportional to the frequency of the wave. The distance a radio wave travels in one second, in a vacuum, is 299,792,458 meters (983,571,056 ft) which is the wavelength of a 1 hertz radio signal. A 1 megahertz radio signal has a wavelength of 299.8 meters (984 ft).

Ex Output:
the wave length of radio wave is 1m its frequency is


Ex Input:
There are two major English language computer keyboard layouts, the United States layout and the United Kingdom layout defined in BS 4822 (48-key version). Both are QWERTY layouts. Users in the United States do not frequently need to make use of the £ (pound) and € (euro) currency symbols, which are common needs in the United Kingdom and Ireland, although the $(dollar sign) symbol is also provided as standard on UK and Irish keyboards. In New Zealand the US keyboard layout is the de facto standard. In Australia, Canada, the Netherlands, Pakistan, Poland and India, the US keyboard might also be used.

Ex Output:

what keyboard layout do we use in australia