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.

Example Input: Sentence: 'a woman holds out her child to stroke the horse'. Remove all words of length '3' in the given sentence.
Example Output: a woman holds child to stroke horse

Example Input: Sentence: 'a girl with sunglasses looking at her phone'. Remove all words of length '3' in the given sentence.
Example Output: a girl with sunglasses looking at phone

Example Input: Sentence: 'an airplane flies over a building on a cloudy day'. Remove all words of length '6' in the given sentence.
Example Output:
an airplane flies over a building on a day