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.

[EX Q]: Sentence: 'a train station focused on the clock above the ticket office'. Remove all words of length '7' in the given sentence.
[EX A]: a train on the clock above the ticket office

[EX Q]: Sentence: 'a old building that has a big clock on top'. Remove all words of length '4' in the given sentence.
[EX A]: a old building has a big clock on top

[EX Q]: Sentence: 'a picture of a man in glasses smiling'. Remove all words of length '3' in the given sentence.
[EX A]:
a picture of a in glasses smiling