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 man stands in front of one of three toilets'. Remove all words of length '1' in the given sentence.
man stands in front of one of three toilets

Sentence: 'a group of people skiing down the side of a snow covered slope'. Remove all words of length '7' in the given sentence.
a group of people skiing down the side of a snow slope

Sentence: 'a small tiled bathroom with a stool in it'. Remove all words of length '5' in the given sentence.

a bathroom with a in it