How to find and print the last word of each line from a text file

Can any one help us in finding the the last word of each line from a text file and print it.

eg:
1st --> aaa bbbb cccc dddd eeee ffff ee
2nd --> aab ered er fdf ere ww ww f

the o/p should be a below.

ee
f

Please don't double post questions, you got the answer here:

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