In this task, you need to remove all words of a given length in the sentence. The number of letters in a word determine its length, for example, the length of the word "apple" is 5.

Sentence: 'an old fashioned clock on a pedestal for first national bank and trust company'. Remove all words of length '9' in the given sentence.
an old clock on a pedestal for first national bank and trust company

Sentence: 'a woman surfing while a man looks on behind her'. Remove all words of length '1' in the given sentence.
woman surfing while man looks on behind her

Sentence: 'a large tree next to a bench on a field'. Remove all words of length '2' in the given sentence.

a large tree next a bench a field