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 boat in the water filled with people'. Remove all words of length '2' in the given sentence.
a boat the water filled with people

Sentence: 'a person is hanging upside down on a light post'. Remove all words of length '5' in the given sentence.

a person is hanging upside down on a post