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 brown bear is standing at the base of the tree'. Remove all words of length '3' in the given sentence.
[A]: a brown bear is standing at base of tree


[Q]: Sentence: 'a black cat sitting on top of a pot for a plant'. Remove all words of length '7' in the given sentence.
[A]: a black cat on top of a pot for a plant


[Q]: Sentence: 'a woman holding a blue umbrella over her head'. Remove all words of length '4' in the given sentence.
[A]:
a woman holding a umbrella her