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 snowboarder is sitting in the white snow'. Remove all words of length '1' in the given sentence.
snowboarder is sitting in the white snow

Sentence: 'giraffe standing in the shade of a tall covering'. Remove all words of length '3' in the given sentence.
giraffe standing in shade of a tall covering

Sentence: 'a lady ducks as a dog jumps to catch a frisbee'. Remove all words of length '4' in the given sentence.

a ducks as a dog jumps to catch a frisbee