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 dog jumping in the air with a frisbee in its mouth'. Remove all words of length '7' in the given sentence.
a dog in the air with a in its mouth

Sentence: 'a cat sitting in front of a tv in a living room'. Remove all words of length '7' in the given sentence.
a cat in front of a tv in a living room

Sentence: 'a partially buried fire hydrant near a tree'. Remove all words of length '6' in the given sentence.

a partially fire hydrant near a tree