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 person driving while eating a slice of pizza'. Remove all words of length '2' in the given sentence.
a person driving while eating a slice pizza

Sentence: 'a man is crouched down by a big elephant'. Remove all words of length '3' in the given sentence.
a is crouched down by a elephant

Sentence: 'a giraffe that is standing in the dirt'. Remove all words of length '1' in the given sentence.

giraffe that is standing in the dirt