Write a program that replaces words in a sentence. The input begins with word replacement pairs (original and replacement). The next line of input is the sentence where any word on the original list is replaced.

Ex: If the input is:

automobile car manufacturer maker children kids The automobile manufacturer recommends car seats for children if the automobile doesn't already have one. 

the output is:

The car maker recommends car seats for kids if the car doesn't already have one. 

You can assume the original words are unique.