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 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 close up of hands holding a video game controller'. Remove all words of length '1' in the given sentence.
close up of hands holding video game controller

Sentence: 'a train is moving towards a downhill track'. Remove all words of length '7' in the given sentence.

a train is moving a downhill track