You are given a sentence and your task is to generate another sentence that supports the given input.

Q: When the parallel rays of a light source strike a convex lens the rays will concentrate or focus at a specific point, the focal point .

A: Convex lenses are thicker in the middle than at the edges so they cause rays of light to converge, or meet, at a point called focus.
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Q: The duodenum is the first part of the small intestine and most of the chemical digestion occurs here.

A: In the body, chemical digestion mainly takes place in the small intestine.
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Q: An electromagnetic solenoid (a coil of wire with a piece of iron inside) pushes the starter motor or a gear from the starter motor against the car's flywheel (a huge gear attached to the engine's crankshaft) and power is supplied to the starter motor.

A:
An electormagnet is a piece of iron inside a solenoid.
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