Task: Program Execution
Input (English): Sentence: 'an otherwise ordinary roof and chimney are offset by an ornate tower resting in the middle of the roof that features ornamental work a walkway a weather vane and a clock'. Remove all words of length '8' in the given sentence.
Output (English): an otherwise roof and chimney are offset by an ornate tower resting in the middle of the roof that ornamental work a walkway a weather vane and a clock