Sentence:Although the [e1]bore[/e1] of the [e2]trumpet[/e2] is mostly cylindrical, it is formed from a complex series of tapers, the smallest being at the mouthpiece receiver, and the largest being at the throat of the bell, before the flare for the bell begins.
 e1: bore. 
 e2 : trumpet.
Answer: Component-Whole(e1,e2)