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: 'two cows are lying down in a field'. Remove all words of length '4' in the given sentence.
[EX A]: two are lying in a field

[EX Q]: Sentence: 'a toddler standing next to a sheep pen'. Remove all words of length '4' in the given sentence.
[EX A]: a toddler standing to a sheep pen

[EX Q]: Sentence: 'an elephant walking around a number of tree trunks'. Remove all words of length '4' in the given sentence.
[EX A]:
an elephant walking around a number of trunks