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: 'a shirtless man tossing a frisbee under his leg'. Remove all words of length '5' in the given sentence.
a shirtless man tossing a frisbee his leg

Sentence: 'an office with file cabinets a keyboard and chairs'. Remove all words of length '4' in the given sentence.
an office cabinets a keyboard and chairs

Sentence: 'a man is holding the hand of a little girl as they view a giraffe in a zoo'. Remove all words of length '6' in the given sentence.

a man is holding the hand of a girl as they view a giraffe in a zoo