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 boy and girl sitting on top of a skateboard'. Remove all words of length '2' in the given sentence.
Example Output: a boy and girl sitting top a skateboard

Example Input: Sentence: 'a brown bear is standing at the base of the tree'. Remove all words of length '3' in the given sentence.
Example Output: a brown bear is standing at base of tree

Example Input: Sentence: 'people standing at the bottom of a ski slope with a chair rail in the distance'. Remove all words of length '5' in the given sentence.
Example Output:
people standing at the bottom of a ski with a rail in the distance