Definition: 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.
Input: Sentence: 'a cat sitting on the hood of a taxi parked on a snowy street'. Remove all words of length '4' in the given sentence.

a cat sitting on the of a parked on a snowy street