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.

[Q]: Sentence: 'a woman is next to a stuff giraffee toy smiling'. Remove all words of length '7' in the given sentence.
[A]: a woman is next to a stuff giraffee toy


[Q]: Sentence: 'a large brown elephant wearing a red head dress'. Remove all words of length '3' in the given sentence.
[A]: a large brown elephant wearing a head dress


[Q]: Sentence: 'a couple of doughnuts sitting next to a coffee cup'. Remove all words of length '4' in the given sentence.
[A]:
a couple of doughnuts sitting to a coffee cup