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.

Sentence: 'a bear rolling on his back on some logs'. Remove all words of length '2' in the given sentence.
a bear rolling his back some logs

Sentence: 'a brown bull with very long horns walking through a forest'. Remove all words of length '4' in the given sentence.
a brown horns walking through a forest

Sentence: 'kids are holding sheep in a fence while other watch'. Remove all words of length '5' in the given sentence.

kids are holding in a